diff --git a/examples/platforms/posix/logging.c b/examples/platforms/posix/logging.c
index 1addd37c0..d8165804d 100644
--- a/examples/platforms/posix/logging.c
+++ b/examples/platforms/posix/logging.c
@@ -138,6 +138,6 @@ void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat
     VerifyOrExit(charsWritten >= 0, logString[offset] = 0);
 
 exit:
-    fprintf(stderr, "%s\r", logString);
+    fprintf(stderr, "%s\r\n", logString);
 }
 
diff --git a/src/cli/cli_uart.cpp b/src/cli/cli_uart.cpp
index b98c24a37..5406cb7eb 100644
--- a/src/cli/cli_uart.cpp
+++ b/src/cli/cli_uart.cpp
@@ -312,6 +312,7 @@ void otCliLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat,
     }
 
     Uart::sUartServer->OutputFormatV(aFormat, aAp);
+    Uart::sUartServer->OutputFormat("\r\n");
 }
 #ifdef __cplusplus
 }  // extern "C"
diff --git a/src/core/common/logging.cpp b/src/core/common/logging.cpp
index a42b27c80..d8a60fe4f 100644
--- a/src/core/common/logging.cpp
+++ b/src/core/common/logging.cpp
@@ -105,7 +105,7 @@ static void DumpLine(otLogLevel aLogLevel, otLogRegion aLogRegion, const void *a
         }
     }
 
-    otLogDump("%s\n", buf);
+    otLogDump("%s", buf);
 }
 
 void otDump(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aId, const void *aBuf, const size_t aLength)
@@ -115,10 +115,6 @@ void otDump(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aId, const
     char buf[80];
     char *cur = buf;
 
-#ifndef WINDOWS_LOGGING
-    otLogDump("\n");
-#endif
-
     for (size_t i = 0; i < (width - idlen) / 2 - 5; i++)
     {
         snprintf(cur, sizeof(buf) - static_cast<size_t>(cur - buf), "=");
@@ -134,7 +130,7 @@ void otDump(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aId, const
         cur += strlen(cur);
     }
 
-    otLogDump("%s\n", buf);
+    otLogDump("%s", buf);
 
     for (size_t i = 0; i < aLength; i += 16)
     {
@@ -149,7 +145,7 @@ void otDump(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aId, const
         cur += strlen(cur);
     }
 
-    otLogDump("%s\n", buf);
+    otLogDump("%s", buf);
 }
 
 #ifdef __cplusplus
diff --git a/src/core/common/message.cpp b/src/core/common/message.cpp
index 75f4e3766..67893df2d 100644
--- a/src/core/common/message.cpp
+++ b/src/core/common/message.cpp
@@ -93,7 +93,7 @@ Buffer *MessagePool::NewBuffer(void)
 
     if (mFreeBuffers == NULL)
     {
-        otLogInfoMac("No available message buffer\n");
+        otLogInfoMac("No available message buffer");
         ExitNow();
     }
 
diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index 027d3c20a..9f061fe7e 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -588,7 +588,7 @@ void Mac::SendBeaconRequest(Frame &aFrame)
     aFrame.SetDstAddr(kShortAddrBroadcast);
     aFrame.SetCommandId(Frame::kMacCmdBeaconRequest);
 
-    otLogInfoMac("Sent Beacon Request\n");
+    otLogInfoMac("Sent Beacon Request");
 }
 
 void Mac::SendBeacon(Frame &aFrame)
@@ -624,7 +624,7 @@ void Mac::SendBeacon(Frame &aFrame)
 
     aFrame.SetPayloadLength(sizeof(*beacon));
 
-    otLogInfoMac("Sent Beacon\n");
+    otLogInfoMac("Sent Beacon");
 }
 
 void Mac::HandleBeginTransmit(void *aContext)
@@ -749,7 +749,7 @@ void Mac::HandleBeginTransmit(void)
     if (sendFrame.GetAckRequest() && !(otPlatRadioGetCaps(mNetif.GetInstance()) & kRadioCapsAckTimeout))
     {
         mMacTimer.Start(kAckTimeout);
-        otLogDebgMac("ack timer start\n");
+        otLogDebgMac("ack timer start");
     }
 
     if (mPcapCallback)
@@ -851,7 +851,7 @@ void Mac::HandleMacTimer(void)
         break;
 
     case kStateTransmitData:
-        otLogDebgMac("ack timer fired\n");
+        otLogDebgMac("ack timer fired");
         mCounters.mTxTotal++;
         SentFrame(kThreadError_NoAck);
         break;
@@ -872,7 +872,7 @@ void Mac::HandleReceiveTimer(void *aContext)
 
 void Mac::HandleReceiveTimer(void)
 {
-    otLogInfoMac("data poll timeout!\n");
+    otLogInfoMac("data poll timeout!");
 
     if (mState == kStateIdle)
     {
@@ -999,7 +999,7 @@ ThreadError Mac::ProcessReceiveSecurity(Frame &aFrame, const Address &aSrcAddr,
 
     aFrame.GetSecurityLevel(securityLevel);
     aFrame.GetFrameCounter(frameCounter);
-    otLogDebgMac("Frame counter %u\n", frameCounter);
+    otLogDebgMac("Frame counter %u", frameCounter);
 
     aFrame.GetKeyIdMode(keyIdMode);
 
@@ -1140,11 +1140,11 @@ void Mac::ReceiveDoneTask(Frame *aFrame, ThreadError aError)
         break;
 
     case sizeof(ShortAddress):
-        otLogDebgMac("Received from short address %x\n", srcaddr.mShortAddress);
+        otLogDebgMac("Received from short address %x", srcaddr.mShortAddress);
 
         if (neighbor == NULL)
         {
-            otLogDebgMac("drop not neighbor\n");
+            otLogDebgMac("drop not neighbor");
             ExitNow(error = kThreadError_UnknownNeighbor);
         }
 
@@ -1162,7 +1162,7 @@ void Mac::ReceiveDoneTask(Frame *aFrame, ThreadError aError)
     // Duplicate Address Protection
     if (memcmp(&srcaddr.mExtAddress, &mExtAddress, sizeof(srcaddr.mExtAddress)) == 0)
     {
-        otLogDebgMac("duplicate address received\n");
+        otLogDebgMac("duplicate address received");
         ExitNow(error = kThreadError_InvalidSourceAddress);
     }
 
@@ -1320,7 +1320,7 @@ ThreadError Mac::HandleMacCommand(Frame &aFrame)
     {
     case Frame::kMacCmdBeaconRequest:
         mCounters.mRxBeaconRequest++;
-        otLogInfoMac("Received Beacon Request\n");
+        otLogInfoMac("Received Beacon Request");
 
         mTransmitBeacon = true;
 
@@ -1385,7 +1385,7 @@ otMacCounters &Mac::GetCounters(void)
 void Mac::EnableSrcMatch(bool aEnable)
 {
     otPlatRadioEnableSrcMatch(mNetif.GetInstance(), aEnable);
-    otLogDebgMac("Enable SrcMatch -- %d(0:Dis, 1:En)\n", aEnable);
+    otLogDebgMac("Enable SrcMatch -- %d(0:Dis, 1:En)", aEnable);
 }
 
 ThreadError Mac::AddSrcMatchEntry(Address &aAddr)
@@ -1395,7 +1395,7 @@ ThreadError Mac::AddSrcMatchEntry(Address &aAddr)
     if (aAddr.mLength == 2)
     {
         error = otPlatRadioAddSrcMatchShortEntry(mNetif.GetInstance(), aAddr.mShortAddress);
-        otLogDebgMac("Adding short address: 0x%x -- %d (0:Ok, 3:NoBufs)\n", aAddr.mShortAddress, error);
+        otLogDebgMac("Adding short address: 0x%x -- %d (0:Ok, 3:NoBufs)", aAddr.mShortAddress, error);
     }
     else
     {
@@ -1407,7 +1407,7 @@ ThreadError Mac::AddSrcMatchEntry(Address &aAddr)
         }
 
         error = otPlatRadioAddSrcMatchExtEntry(mNetif.GetInstance(), buf);
-        otLogDebgMac("Adding extended address: 0x%02x%02x%02x%02x%02x%02x%02x%02x -- %d (0:OK, 3:NoBufs)\n",
+        otLogDebgMac("Adding extended address: 0x%02x%02x%02x%02x%02x%02x%02x%02x -- %d (0:OK, 3:NoBufs)",
                      buf[7], buf[6], buf[5], buf[4], buf[3], buf[2], buf[1], buf[0], error);
     }
 
@@ -1421,7 +1421,7 @@ ThreadError Mac::ClearSrcMatchEntry(Address &aAddr)
     if (aAddr.mLength == 2)
     {
         error = otPlatRadioClearSrcMatchShortEntry(mNetif.GetInstance(), aAddr.mShortAddress);
-        otLogDebgMac("Clearing short address: 0x%x -- %d (0:OK, 10:NoAddress)\n", aAddr.mShortAddress, error);
+        otLogDebgMac("Clearing short address: 0x%x -- %d (0:OK, 10:NoAddress)", aAddr.mShortAddress, error);
     }
     else
     {
@@ -1433,7 +1433,7 @@ ThreadError Mac::ClearSrcMatchEntry(Address &aAddr)
         }
 
         error = otPlatRadioClearSrcMatchExtEntry(mNetif.GetInstance(), buf);
-        otLogDebgMac("Clearing extended address: 0x%02x%02x%02x%02x%02x%02x%02x%02x -- %d (0:OK, 10:NoAddress)\n",
+        otLogDebgMac("Clearing extended address: 0x%02x%02x%02x%02x%02x%02x%02x%02x -- %d (0:OK, 10:NoAddress)",
                      buf[7], buf[6], buf[5], buf[4], buf[3], buf[2], buf[1], buf[0], error);
     }
 
diff --git a/src/core/meshcop/commissioner.cpp b/src/core/meshcop/commissioner.cpp
index da51d1f3a..2203b4236 100644
--- a/src/core/meshcop/commissioner.cpp
+++ b/src/core/meshcop/commissioner.cpp
@@ -340,7 +340,7 @@ ThreadError Commissioner::SendMgmtCommissionerGetRequest(const uint8_t *aTlvs,
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent MGMT_COMMISSIONER_GET.req to leader\n");
+    otLogInfoMeshCoP("sent MGMT_COMMISSIONER_GET.req to leader");
 
 exit:
 
@@ -424,7 +424,7 @@ ThreadError Commissioner::SendMgmtCommissionerSetRequest(const otCommissioningDa
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent MGMT_COMMISSIONER_SET.req to leader\n");
+    otLogInfoMeshCoP("sent MGMT_COMMISSIONER_SET.req to leader");
 
 exit:
 
@@ -483,7 +483,7 @@ ThreadError Commissioner::SendPetition(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent petition\n");
+    otLogInfoMeshCoP("sent petition");
 
 exit:
 
@@ -545,7 +545,7 @@ ThreadError Commissioner::SendKeepAlive(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent keep alive\n");
+    otLogInfoMeshCoP("sent keep alive");
 
 exit:
 
@@ -593,7 +593,7 @@ void Commissioner::HandleRelayReceive(Coap::Header &aHeader, Message &aMessage,
     mJoinerPort = joinerPort.GetUdpPort();
     mJoinerRloc = joinerRloc.GetJoinerRouterLocator();
 
-    otLogInfoMeshCoP("Received relay receive for %llX, rloc:%x\n", HostSwap64(mJoinerIid64), mJoinerRloc);
+    otLogInfoMeshCoP("Received relay receive for %llX, rloc:%x", HostSwap64(mJoinerIid64), mJoinerRloc);
 
     if (!mNetif.GetDtls().IsStarted())
     {
@@ -611,7 +611,7 @@ void Commissioner::HandleRelayReceive(Coap::Header &aHeader, Message &aMessage,
                 SuccessOrExit(error = mNetif.GetDtls().SetPsk(reinterpret_cast<const uint8_t *>(mJoiners[i].mPsk),
                                                               static_cast<uint8_t>(strlen(mJoiners[i].mPsk))));
                 SuccessOrExit(error = mNetif.GetDtls().Start(false, HandleDtlsReceive, HandleDtlsSend, this));
-                otLogInfoMeshCoP("found joiner, starting new session\n");
+                otLogInfoMeshCoP("found joiner, starting new session");
                 break;
             }
         }
@@ -641,7 +641,7 @@ void Commissioner::HandleDatasetChanged(Coap::Header &aHeader, Message &aMessage
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoMeshCoP("received dataset changed\n");
+    otLogInfoMeshCoP("received dataset changed");
     (void)aMessage;
 
     SendDatasetChangedResponse(aHeader, aMessageInfo);
@@ -667,7 +667,7 @@ void Commissioner::SendDatasetChangedResponse(const Coap::Header &aRequestHeader
     SuccessOrExit(error = message->Append(responseHeader.GetBytes(), responseHeader.GetLength()));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("Sent dataset changed acknowledgment\n");
+    otLogInfoMeshCoP("Sent dataset changed acknowledgment");
 
 exit:
 
@@ -704,7 +704,7 @@ void Commissioner::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &a
     {
         mIsSendMgmtCommRequest = false;
 
-        otLogInfoMeshCoP("received MGMT_COMMISSIONER_SET and MGMT_COMMISSIONER_GET response\n");
+        otLogInfoMeshCoP("received MGMT_COMMISSIONER_SET and MGMT_COMMISSIONER_GET response");
 
         ExitNow();
     }
@@ -724,7 +724,7 @@ void Commissioner::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &a
         VerifyOrExit(sessionId.IsValid(), ;);
         mSessionId = sessionId.GetCommissionerSessionId();
 
-        otLogInfoMeshCoP("received petition response\n");
+        otLogInfoMeshCoP("received petition response");
 
         mState = kStateActive;
         mTransmitAttempts = 0;
@@ -732,7 +732,7 @@ void Commissioner::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &a
         break;
 
     case kStateActive:
-        otLogInfoMeshCoP("received keep alive response\n");
+        otLogInfoMeshCoP("received keep alive response");
         mTransmitAttempts = 0;
         mTimer.Start(Timer::SecToMsec(kKeepAliveTimeout) / 2);
         break;
@@ -745,7 +745,7 @@ exit:
 
 ThreadError Commissioner::HandleDtlsSend(void *aContext, const uint8_t *aBuf, uint16_t aLength)
 {
-    otLogInfoMeshCoP("Commissioner::HandleDtlsTransmit\n");
+    otLogInfoMeshCoP("Commissioner::HandleDtlsTransmit");
     return static_cast<Commissioner *>(aContext)->HandleDtlsSend(aBuf, aLength);
 }
 
@@ -818,7 +818,7 @@ exit:
 
 void Commissioner::HandleDtlsReceive(void *aContext, uint8_t *aBuf, uint16_t aLength)
 {
-    otLogInfoMeshCoP("Commissioner::HandleDtlsReceive\n");
+    otLogInfoMeshCoP("Commissioner::HandleDtlsReceive");
     static_cast<Commissioner *>(aContext)->HandleDtlsReceive(aBuf, aLength);
 }
 
@@ -831,7 +831,7 @@ void Commissioner::HandleDtlsReceive(uint8_t *aBuf, uint16_t aLength)
 
 void Commissioner::HandleUdpTransmit(void *aContext)
 {
-    otLogInfoMeshCoP("Commissioner::HandleUdpTransmit\n");
+    otLogInfoMeshCoP("Commissioner::HandleUdpTransmit");
     static_cast<Commissioner *>(aContext)->HandleUdpTransmit();
 }
 
@@ -879,7 +879,7 @@ void Commissioner::ReceiveJoinerFinalize(uint8_t *buf, uint16_t length)
     ProvisioningUrlTlv provisioningUrl;
 
     otLogFuncEntry();
-    otLogInfoMeshCoP("receive joiner finalize 1\n");
+    otLogInfoMeshCoP("receive joiner finalize");
 
     VerifyOrExit((message = mNetif.GetIp6().mMessagePool.New(Message::kTypeIp6, 0)) != NULL, ;);
     SuccessOrExit(message->Append(buf, length));
@@ -967,8 +967,8 @@ void Commissioner::SendJoinFinalizeResponse(const Coap::Header &aRequestHeader,
     mNetif.GetDtls().Send(buf, static_cast<uint16_t>(cur - buf));
     mSendKek = false;
 
-    otLogInfoMeshCoP("sent joiner finalize response\n");
-    otLogCertMeshCoP("[THCI] direction=send | type=JOIN_FIN.rsp\n");
+    otLogInfoMeshCoP("sent joiner finalize response");
+    otLogCertMeshCoP("[THCI] direction=send | type=JOIN_FIN.rsp");
     otLogFuncExit();
 }
 
diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index 534d378d7..ab1029f87 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -121,7 +121,7 @@ ThreadError Dtls::Start(bool aClient, ReceiveHandler aReceiveHandler, SendHandle
     mStarted = true;
     Process();
 
-    otLogInfoMeshCoP("DTLS started\n");
+    otLogInfoMeshCoP("DTLS started");
 
 exit:
     return MapError(rval);
@@ -200,7 +200,7 @@ int Dtls::HandleMbedtlsTransmit(const unsigned char *aBuf, size_t aLength)
     ThreadError error;
     int rval = 0;
 
-    otLogInfoMeshCoP("Dtls::HandleMbedtlsTransmit\n");
+    otLogInfoMeshCoP("Dtls::HandleMbedtlsTransmit");
 
     error = mSendHandler(mContext, aBuf, (uint16_t)aLength);
 
@@ -231,7 +231,7 @@ int Dtls::HandleMbedtlsReceive(unsigned char *aBuf, size_t aLength)
 {
     int rval;
 
-    otLogInfoMeshCoP("Dtls::HandleMbedtlsReceive\n");
+    otLogInfoMeshCoP("Dtls::HandleMbedtlsReceive");
 
     VerifyOrExit(mReceiveMessage != NULL && mReceiveLength != 0, rval = MBEDTLS_ERR_SSL_WANT_READ);
 
@@ -257,7 +257,7 @@ int Dtls::HandleMbedtlsGetTimer(void)
 {
     int rval;
 
-    otLogInfoMeshCoP("Dtls::HandleMbedtlsGetTimer\n");
+    otLogInfoMeshCoP("Dtls::HandleMbedtlsGetTimer");
 
     if (!mTimerSet)
     {
@@ -286,7 +286,7 @@ void Dtls::HandleMbedtlsSetTimer(void *aContext, uint32_t aIntermediate, uint32_
 
 void Dtls::HandleMbedtlsSetTimer(uint32_t aIntermediate, uint32_t aFinish)
 {
-    otLogInfoMeshCoP("Dtls::SetTimer\n");
+    otLogInfoMeshCoP("Dtls::SetTimer");
 
     if (aFinish == 0)
     {
@@ -320,7 +320,7 @@ int Dtls::HandleMbedtlsExportKeys(const unsigned char *aMasterSecret, const unsi
 
     mNetif.GetKeyManager().SetKek(kek);
 
-    otLogInfoMeshCoP("Generated KEK\n");
+    otLogInfoMeshCoP("Generated KEK");
 
     (void)aMasterSecret;
     return 0;
@@ -439,20 +439,20 @@ void Dtls::HandleMbedtlsDebug(void *, int level, const char *, int , const char
     switch (level)
     {
     case 1:
-        otLogCritMbedTls("%s\n", str);
+        otLogCritMbedTls("%s", str);
         break;
 
     case 2:
-        otLogWarnMbedTls("%s\n", str);
+        otLogWarnMbedTls("%s", str);
         break;
 
     case 3:
-        otLogInfoMbedTls("%s\n", str);
+        otLogInfoMbedTls("%s", str);
         break;
 
     case 4:
     default:
-        otLogDebgMbedTls("%s\n", str);
+        otLogDebgMbedTls("%s", str);
         break;
     }
 }
diff --git a/src/core/meshcop/energy_scan_client.cpp b/src/core/meshcop/energy_scan_client.cpp
index 2f008959f..bf3d5f213 100644
--- a/src/core/meshcop/energy_scan_client.cpp
+++ b/src/core/meshcop/energy_scan_client.cpp
@@ -132,7 +132,7 @@ ThreadError EnergyScanClient::SendQuery(uint32_t aChannelMask, uint8_t aCount, u
     messageInfo.mInterfaceId = mNetif.GetInterfaceId();
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent energy scan query\n");
+    otLogInfoMeshCoP("sent energy scan query");
 
     mCallback = aCallback;
     mContext = aContext;
@@ -173,7 +173,7 @@ void EnergyScanClient::HandleReport(Coap::Header &aHeader, Message &aMessage, co
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoMeshCoP("received energy scan report\n");
+    otLogInfoMeshCoP("received energy scan report");
 
     SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kChannelMask, sizeof(channelMask), channelMask.tlv));
     VerifyOrExit(channelMask.tlv.IsValid() &&
@@ -227,7 +227,7 @@ exit:
 
 void EnergyScanClient::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("received energy scan query response\n");
+    otLogInfoMeshCoP("received energy scan query response");
     (void)aContext;
     (void)aMessage;
     (void)aMessageInfo;
diff --git a/src/core/meshcop/joiner.cpp b/src/core/meshcop/joiner.cpp
index fda089e44..8e993afac 100644
--- a/src/core/meshcop/joiner.cpp
+++ b/src/core/meshcop/joiner.cpp
@@ -140,7 +140,7 @@ void Joiner::HandleDiscoverResult(otActiveScanResult *aResult)
         }
         else
         {
-            otLogDebgMeshCoP("Steering data not set\n");
+            otLogDebgMeshCoP("Steering data not set");
         }
     }
     else if (mJoinerRouterPanId != Mac::kPanIdBroadcast)
@@ -165,7 +165,7 @@ void Joiner::HandleDiscoverResult(otActiveScanResult *aResult)
 
 ThreadError Joiner::HandleDtlsSend(void *aContext, const uint8_t *aBuf, uint16_t aLength)
 {
-    otLogInfoMeshCoP("Joiner::HandleDtlsTransmit\n");
+    otLogInfoMeshCoP("Joiner::HandleDtlsTransmit");
     return static_cast<Joiner *>(aContext)->HandleDtlsSend(aBuf, aLength);
 }
 
@@ -198,7 +198,7 @@ exit:
 
 void Joiner::HandleDtlsReceive(void *aContext, uint8_t *aBuf, uint16_t aLength)
 {
-    otLogInfoMeshCoP("Joiner::HandleDtlsReceive\n");
+    otLogInfoMeshCoP("Joiner::HandleDtlsReceive");
     static_cast<Joiner *>(aContext)->HandleDtlsReceive(aBuf, aLength);
 }
 
@@ -209,7 +209,7 @@ void Joiner::HandleDtlsReceive(uint8_t *aBuf, uint16_t aLength)
 
 void Joiner::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("Joiner::HandleUdpReceive\n");
+    otLogInfoMeshCoP("Joiner::HandleUdpReceive");
     static_cast<Joiner *>(aContext)->HandleUdpReceive(*static_cast<Message *>(aMessage),
                                                       *static_cast<const Ip6::MessageInfo *>(aMessageInfo));
 }
@@ -231,7 +231,7 @@ void Joiner::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessag
 
 void Joiner::HandleUdpTransmit(void *aContext)
 {
-    otLogInfoMeshCoP("Joiner::HandleUdpTransmit\n");
+    otLogInfoMeshCoP("Joiner::HandleUdpTransmit");
     static_cast<Joiner *>(aContext)->HandleUdpTransmit();
 }
 
@@ -244,7 +244,7 @@ void Joiner::HandleUdpTransmit(void)
 
     VerifyOrExit(mTransmitMessage != NULL, error = kThreadError_NoBufs);
 
-    otLogInfoMeshCoP("transmit %d (to %llX)\n", mTransmitMessage->GetLength(),
+    otLogInfoMeshCoP("transmit %d (to %llX)", mTransmitMessage->GetLength(),
                      HostSwap64(*reinterpret_cast<uint64_t *>(&mJoinerRouter)));
 
     memset(&messageInfo, 0, sizeof(messageInfo));
@@ -302,7 +302,7 @@ void Joiner::SendJoinerFinalize(void)
 
     mNetif.GetDtls().Send(buf, static_cast<uint16_t>(cur - buf));
 
-    otLogInfoMeshCoP("Sent joiner finalize\n");
+    otLogInfoMeshCoP("Sent joiner finalize");
     otDumpCertMeshCoP("[THCI] direction=send | type=JOIN_FIN.req |", buf + header.GetLength(),
                       cur - buf - header.GetLength());
     otLogFuncExit();
@@ -329,8 +329,8 @@ void Joiner::ReceiveJoinerFinalizeResponse(uint8_t *buf, uint16_t length)
     SuccessOrExit(Tlv::GetTlv(*message, Tlv::kState, sizeof(state), state));
     VerifyOrExit(state.IsValid(), ;);
 
-    otLogInfoMeshCoP("received joiner finalize response %d\n", static_cast<uint8_t>(state.GetState()));
-    otLogCertMeshCoP("[THCI] direction=recv | type=JOIN_FIN.rsp\n");
+    otLogInfoMeshCoP("received joiner finalize response %d", static_cast<uint8_t>(state.GetState()));
+    otLogCertMeshCoP("[THCI] direction=recv | type=JOIN_FIN.rsp");
 
     Close();
 
@@ -365,8 +365,8 @@ void Joiner::HandleJoinerEntrust(Coap::Header &aHeader, Message &aMessage, const
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, error = kThreadError_Drop);
 
-    otLogInfoMeshCoP("Received joiner entrust\n");
-    otLogCertMeshCoP("[THCI] direction=recv | type=JOIN_ENT.ntf\n");
+    otLogInfoMeshCoP("Received joiner entrust");
+    otLogCertMeshCoP("[THCI] direction=recv | type=JOIN_ENT.ntf");
 
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kNetworkMasterKey, sizeof(masterKey), masterKey));
     VerifyOrExit(masterKey.IsValid(), error = kThreadError_Parse);
@@ -388,7 +388,7 @@ void Joiner::HandleJoinerEntrust(Coap::Header &aHeader, Message &aMessage, const
     mNetif.GetMac().SetExtendedPanId(extendedPanId.GetExtendedPanId());
     mNetif.GetMac().SetNetworkName(networkName.GetNetworkName());
 
-    otLogInfoMeshCoP("join success!\n");
+    otLogInfoMeshCoP("join success!");
 
     // Delay extended address configuration to allow DTLS wrap up.
     mTimer.Start(kConfigExtAddressDelay);
diff --git a/src/core/meshcop/joiner_router.cpp b/src/core/meshcop/joiner_router.cpp
index 72a3999c9..e71da4970 100644
--- a/src/core/meshcop/joiner_router.cpp
+++ b/src/core/meshcop/joiner_router.cpp
@@ -91,7 +91,7 @@ void JoinerRouter::HandleNetifStateChanged(uint32_t aFlags)
         mSocket.Open(&JoinerRouter::HandleUdpReceive, this);
         mSocket.Bind(sockaddr);
         mNetif.GetIp6Filter().AddUnsecurePort(sockaddr.mPort);
-        otLogInfoMeshCoP("Joiner Router: start\n");
+        otLogInfoMeshCoP("Joiner Router: start");
     }
     else
     {
@@ -188,7 +188,7 @@ void JoinerRouter::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &a
 
     otLogFuncEntryMsg("from peer: %llX",
                       HostSwap64(*reinterpret_cast<const uint64_t *>(aMessageInfo.GetPeerAddr().mFields.m8 + 8)));
-    otLogInfoMeshCoP("JoinerRouter::HandleUdpReceive\n");
+    otLogInfoMeshCoP("JoinerRouter::HandleUdpReceive");
 
     SuccessOrExit(error = GetBorderAgentRloc(borderAgentRloc));
 
@@ -244,7 +244,7 @@ void JoinerRouter::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &a
 
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("Sent relay rx\n");
+    otLogInfoMeshCoP("Sent relay rx");
 
 exit:
 
@@ -277,7 +277,7 @@ void JoinerRouter::HandleRelayTransmit(Coap::Header &aHeader, Message &aMessage,
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeNonConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, error = kThreadError_Drop);
 
-    otLogInfoMeshCoP("Received relay transmit\n");
+    otLogInfoMeshCoP("Received relay transmit");
 
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kJoinerUdpPort, sizeof(joinerPort), joinerPort));
     VerifyOrExit(joinerPort.IsValid(), error = kThreadError_Parse);
@@ -319,7 +319,7 @@ void JoinerRouter::HandleRelayTransmit(Coap::Header &aHeader, Message &aMessage,
 
     if (Tlv::GetTlv(aMessage, Tlv::kJoinerRouterKek, sizeof(kek), kek) == kThreadError_None)
     {
-        otLogInfoMeshCoP("Received kek\n");
+        otLogInfoMeshCoP("Received kek");
         mNetif.GetKeyManager().SetKek(kek.GetKek());
         SendJoinerEntrust(messageInfo);
     }
@@ -425,8 +425,8 @@ ThreadError JoinerRouter::SendJoinerEntrust(const Ip6::MessageInfo &aMessageInfo
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("Sent joiner entrust length = %d\n", message->GetLength());
-    otLogCertMeshCoP("[THCI] direction=send | msg_type=JOIN_ENT.ntf\n");
+    otLogInfoMeshCoP("Sent joiner entrust length = %d", message->GetLength());
+    otLogCertMeshCoP("[THCI] direction=send | msg_type=JOIN_ENT.ntf");
 
 exit:
 
diff --git a/src/core/meshcop/leader.cpp b/src/core/meshcop/leader.cpp
index 4dbf4ba31..a0e1e8a3e 100644
--- a/src/core/meshcop/leader.cpp
+++ b/src/core/meshcop/leader.cpp
@@ -75,7 +75,7 @@ void Leader::HandlePetition(Coap::Header &aHeader, Message &aMessage, const Ip6:
     CommissionerIdTlv commissionerId;
     StateTlv::State state = StateTlv::kReject;
 
-    otLogInfoMeshCoP("received petition\n");
+    otLogInfoMeshCoP("received petition");
 
     SuccessOrExit(Tlv::GetTlv(aMessage, Tlv::kCommissionerId, sizeof(commissionerId), commissionerId));
     VerifyOrExit(commissionerId.IsValid(), ;);
@@ -140,7 +140,7 @@ ThreadError Leader::SendPetitionResponse(const Coap::Header &aRequestHeader, con
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent petition response\n");
+    otLogInfoMeshCoP("sent petition response");
 
 exit:
 
@@ -164,7 +164,7 @@ void Leader::HandleKeepAlive(Coap::Header &aHeader, Message &aMessage, const Ip6
     CommissionerSessionIdTlv sessionId;
     StateTlv::State responseState;
 
-    otLogInfoMeshCoP("received keep alive\n");
+    otLogInfoMeshCoP("received keep alive");
 
     SuccessOrExit(Tlv::GetTlv(aMessage, Tlv::kState, sizeof(state), state));
     VerifyOrExit(state.IsValid(),);
@@ -181,7 +181,7 @@ void Leader::HandleKeepAlive(Coap::Header &aHeader, Message &aMessage, const Ip6
         responseState = StateTlv::kReject;
         mTimer.Stop();
         mNetworkData.SetCommissioningData(NULL, 0);
-        otLogInfoMeshCoP("commissioner inactive\n");
+        otLogInfoMeshCoP("commissioner inactive");
     }
     else
     {
@@ -218,7 +218,7 @@ ThreadError Leader::SendKeepAliveResponse(const Coap::Header &aRequestHeader, co
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent keep alive response\n");
+    otLogInfoMeshCoP("sent keep alive response");
 
 exit:
 
@@ -232,7 +232,7 @@ exit:
 
 void Leader::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("received dataset changed response\n");
+    otLogInfoMeshCoP("received dataset changed response");
     (void)aContext;
     (void)aMessage;
     (void)aMessageInfo;
@@ -266,7 +266,7 @@ ThreadError Leader::SendDatasetChanged(const Ip6::Address &aAddress)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent dataset changed\n");
+    otLogInfoMeshCoP("sent dataset changed");
 
 exit:
 
@@ -287,7 +287,7 @@ void Leader::HandleTimer(void)
 {
     VerifyOrExit(mNetif.GetMle().GetDeviceState() == Mle::kDeviceStateLeader, ;);
 
-    otLogInfoMeshCoP("commissioner inactive\n");
+    otLogInfoMeshCoP("commissioner inactive");
     mNetworkData.SetCommissioningData(NULL, 0);
 
 exit:
diff --git a/src/core/meshcop/panid_query_client.cpp b/src/core/meshcop/panid_query_client.cpp
index 4e2998c3c..3a7fcda37 100644
--- a/src/core/meshcop/panid_query_client.cpp
+++ b/src/core/meshcop/panid_query_client.cpp
@@ -117,7 +117,7 @@ ThreadError PanIdQueryClient::SendQuery(uint16_t aPanId, uint32_t aChannelMask,
     messageInfo.mInterfaceId = mNetif.GetInterfaceId();
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent panid query\n");
+    otLogInfoMeshCoP("sent panid query");
 
     mCallback = aCallback;
     mContext = aContext;
@@ -153,7 +153,7 @@ void PanIdQueryClient::HandleConflict(Coap::Header &aHeader, Message &aMessage,
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoMeshCoP("received panid conflict\n");
+    otLogInfoMeshCoP("received panid conflict");
 
     SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kPanId, sizeof(panId), panId));
     VerifyOrExit(panId.IsValid(), ;);
@@ -214,7 +214,7 @@ exit:
 
 void PanIdQueryClient::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("received panid query response\n");
+    otLogInfoMeshCoP("received panid query response");
     (void)aContext;
     (void)aMessage;
     (void)aMessageInfo;
diff --git a/src/core/net/icmp6.cpp b/src/core/net/icmp6.cpp
index c0af3b6d9..c5131153b 100644
--- a/src/core/net/icmp6.cpp
+++ b/src/core/net/icmp6.cpp
@@ -104,7 +104,7 @@ ThreadError Icmp::SendEchoRequest(Message &aMessage, const MessageInfo &aMessage
     aMessage.SetOffset(0);
     SuccessOrExit(error = mIp6.SendDatagram(aMessage, messageInfoLocal, kProtoIcmp6));
 
-    otLogInfoIcmp("Sent echo request: (seq = %d)\n", icmpHeader.GetSequence());
+    otLogInfoIcmp("Sent echo request: (seq = %d)", icmpHeader.GetSequence());
 
 exit:
     return error;
@@ -133,7 +133,7 @@ ThreadError Icmp::SendError(const Address &aDestination, IcmpHeader::Type aType,
 
     SuccessOrExit(error = mIp6.SendDatagram(*message, messageInfo, kProtoIcmp6));
 
-    otLogInfoIcmp("Sent ICMPv6 Error\n");
+    otLogInfoIcmp("Sent ICMPv6 Error");
 
 exit:
 
@@ -203,14 +203,14 @@ ThreadError Icmp::HandleEchoRequest(Message &aRequestMessage, const MessageInfo
 
     VerifyOrExit(mIsEchoEnabled, ;);
 
-    otLogInfoIcmp("Received Echo Request\n");
+    otLogInfoIcmp("Received Echo Request");
 
     icmp6Header.Init();
     icmp6Header.SetType(IcmpHeader::kTypeEchoReply);
 
     if ((replyMessage = mIp6.NewMessage(0)) == NULL)
     {
-        otLogDebgIcmp("icmp fail\n");
+        otLogDebgIcmp("icmp fail");
         ExitNow();
     }
 
@@ -234,7 +234,7 @@ ThreadError Icmp::HandleEchoRequest(Message &aRequestMessage, const MessageInfo
     SuccessOrExit(error = mIp6.SendDatagram(*replyMessage, replyMessageInfo, kProtoIcmp6));
 
     replyMessage->Read(replyMessage->GetOffset(), sizeof(icmp6Header), &icmp6Header);
-    otLogInfoIcmp("Sent Echo Reply (seq = %d)\n", icmp6Header.GetSequence());
+    otLogInfoIcmp("Sent Echo Reply (seq = %d)", icmp6Header.GetSequence());
 
 exit:
 
diff --git a/src/core/openthread.cpp b/src/core/openthread.cpp
index fe6023431..90d291857 100644
--- a/src/core/openthread.cpp
+++ b/src/core/openthread.cpp
@@ -1007,7 +1007,7 @@ otInstance *otInstanceInit(void *aInstanceBuffer, size_t *aInstanceBufferSize)
     otInstance *aInstance = NULL;
 
     otLogFuncEntry();
-    otLogInfoApi("otInstanceInit\n");
+    otLogInfoApi("otInstanceInit");
 
     VerifyOrExit(aInstanceBufferSize != NULL, ;);
 
@@ -1031,7 +1031,7 @@ otInstance *otInstanceInit()
 {
     otLogFuncEntry();
 
-    otLogInfoApi("otInstanceInit\n");
+    otLogInfoApi("otInstanceInit");
 
     VerifyOrExit(sInstance == NULL, ;);
 
diff --git a/src/core/thread/address_resolver.cpp b/src/core/thread/address_resolver.cpp
index aa47fc669..c77b2d3ce 100644
--- a/src/core/thread/address_resolver.cpp
+++ b/src/core/thread/address_resolver.cpp
@@ -193,7 +193,7 @@ ThreadError AddressResolver::SendAddressQuery(const Ip6::Address &aEid)
 
     SuccessOrExit(error = mCoapClient.SendMessage(*message, messageInfo, NULL, NULL));
 
-    otLogInfoArp("Sent address query\n");
+    otLogInfoArp("Sent address query");
 
 exit:
 
@@ -228,7 +228,7 @@ void AddressResolver::HandleAddressNotification(Coap::Header &aHeader, Message &
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoArp("Received address notification from %04x\n", HostSwap16(aMessageInfo.GetPeerAddr().mFields.m16[7]));
+    otLogInfoArp("Received address notification from %04x", HostSwap16(aMessageInfo.GetPeerAddr().mFields.m16[7]));
 
     SuccessOrExit(ThreadTlv::GetTlv(aMessage, ThreadTlv::kTarget, sizeof(targetTlv), targetTlv));
     VerifyOrExit(targetTlv.IsValid(), ;);
@@ -309,7 +309,7 @@ void AddressResolver::SendAddressNotificationResponse(const Coap::Header &aReque
     memset(&responseInfo.mSockAddr, 0, sizeof(responseInfo.mSockAddr));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, responseInfo));
 
-    otLogInfoArp("Sent address notification acknowledgment\n");
+    otLogInfoArp("Sent address notification acknowledgment");
 
 exit:
 
@@ -355,7 +355,7 @@ ThreadError AddressResolver::SendAddressError(const ThreadTargetTlv &aTarget, co
 
     SuccessOrExit(error = mCoapClient.SendMessage(*message, messageInfo, NULL, NULL));
 
-    otLogInfoArp("Sent address error\n");
+    otLogInfoArp("Sent address error");
 
 exit:
 
@@ -385,7 +385,7 @@ void AddressResolver::SendAddressErrorResponse(const Coap::Header &aRequestHeade
     memset(&responseInfo.mSockAddr, 0, sizeof(responseInfo.mSockAddr));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, responseInfo));
 
-    otLogInfoArp("Sent address error notification acknowledgment\n");
+    otLogInfoArp("Sent address error notification acknowledgment");
 
 exit:
 
@@ -415,7 +415,7 @@ void AddressResolver::HandleAddressError(Coap::Header &aHeader, Message &aMessag
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, error = kThreadError_Drop);
 
-    otLogInfoArp("Received address error notification\n");
+    otLogInfoArp("Received address error notification");
 
     if (!aMessageInfo.GetSockAddr().IsMulticast())
     {
@@ -491,7 +491,7 @@ void AddressResolver::HandleAddressQuery(Coap::Header &aHeader, Message &aMessag
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeNonConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoArp("Received address query from %04x\n", HostSwap16(aMessageInfo.GetPeerAddr().mFields.m16[7]));
+    otLogInfoArp("Received address query from %04x", HostSwap16(aMessageInfo.GetPeerAddr().mFields.m16[7]));
 
     SuccessOrExit(ThreadTlv::GetTlv(aMessage, ThreadTlv::kTarget, sizeof(targetTlv), targetTlv));
     VerifyOrExit(targetTlv.IsValid(), ;);
@@ -576,7 +576,7 @@ void AddressResolver::SendAddressQueryResponse(const ThreadTargetTlv &aTargetTlv
 
     SuccessOrExit(error = mCoapClient.SendMessage(*message, messageInfo, NULL, NULL));
 
-    otLogInfoArp("Sent address notification\n");
+    otLogInfoArp("Sent address notification");
 
 exit:
 
@@ -659,7 +659,7 @@ void AddressResolver::HandleDstUnreach(Message &aMessage, const Ip6::MessageInfo
             memcmp(&mCache[i].mTarget, &ip6Header.GetDestination(), sizeof(mCache[i].mTarget)) == 0)
         {
             mCache[i].mState = Cache::kStateInvalid;
-            otLogInfoArp("cache entry removed!\n");
+            otLogInfoArp("cache entry removed!");
             break;
         }
     }
diff --git a/src/core/thread/announce_begin_server.cpp b/src/core/thread/announce_begin_server.cpp
index 23025ba49..c9a8f5be9 100644
--- a/src/core/thread/announce_begin_server.cpp
+++ b/src/core/thread/announce_begin_server.cpp
@@ -151,7 +151,7 @@ ThreadError AnnounceBeginServer::SendResponse(const Coap::Header &aRequestHeader
     memset(&responseInfo.mSockAddr, 0, sizeof(responseInfo.mSockAddr));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, responseInfo));
 
-    otLogInfoMeshCoP("sent announce begin response\n");
+    otLogInfoMeshCoP("sent announce begin response");
 
 exit:
 
diff --git a/src/core/thread/energy_scan_server.cpp b/src/core/thread/energy_scan_server.cpp
index 9c6dec9d3..bbe523794 100644
--- a/src/core/thread/energy_scan_server.cpp
+++ b/src/core/thread/energy_scan_server.cpp
@@ -141,7 +141,7 @@ ThreadError EnergyScanServer::SendResponse(const Coap::Header &aRequestHeader, c
     memset(&responseInfo.mSockAddr, 0, sizeof(responseInfo.mSockAddr));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, responseInfo));
 
-    otLogInfoMeshCoP("sent energy scan query response\n");
+    otLogInfoMeshCoP("sent energy scan query response");
 
 exit:
 
@@ -166,7 +166,6 @@ void EnergyScanServer::HandleTimer(void)
     {
         // grab the lowest channel to scan
         uint32_t channelMask = mChannelMaskCurrent & ~(mChannelMaskCurrent - 1);
-        otLogInfoMeshCoP("%x\n", channelMask);
         mNetif.GetMac().EnergyScan(channelMask, mScanDuration, HandleScanResult, this);
     }
     else
@@ -261,7 +260,7 @@ ThreadError EnergyScanServer::SendReport(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent scan results\n");
+    otLogInfoMeshCoP("sent scan results");
 
 exit:
 
@@ -277,7 +276,7 @@ exit:
 
 void EnergyScanServer::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("received scan report response\n");
+    otLogInfoMeshCoP("received scan report response");
     (void)aContext;
     (void)aMessage;
     (void)aMessageInfo;
diff --git a/src/core/thread/mesh_forwarder.cpp b/src/core/thread/mesh_forwarder.cpp
index a2d4a1c1e..b700fc683 100644
--- a/src/core/thread/mesh_forwarder.cpp
+++ b/src/core/thread/mesh_forwarder.cpp
@@ -251,8 +251,8 @@ ThreadError MeshForwarder::AddSrcMatchEntry(Child &aChild)
     ThreadError error = kThreadError_NoBufs;
     Mac::Address macAddr;
 
-    otLogDebgMac("Queuing for child (0x%x)\n", aChild.mValid.mRloc16);
-    otLogDebgMac("SrcMatch %d (0:Dis, 1:En))\n", mSrcMatchEnabled);
+    otLogDebgMac("Queuing for child (0x%x)", aChild.mValid.mRloc16);
+    otLogDebgMac("SrcMatch %d (0:Dis, 1:En))", mSrcMatchEnabled);
 
     // first queued message, to be added into source match table
     if (aChild.mQueuedIndirectMessageCnt == 1)
@@ -294,7 +294,7 @@ exit:
 void MeshForwarder::ClearSrcMatchEntry(Child &aChild)
 {
     Mac::Address macAddr;
-    otLogDebgMac("SrcMatch %d (0:Dis, 1:En))\n", mSrcMatchEnabled);
+    otLogDebgMac("SrcMatch %d (0:Dis, 1:En))", mSrcMatchEnabled);
 
     if (aChild.mAddSrcMatchEntryShort)
     {
@@ -781,7 +781,7 @@ void MeshForwarder::HandlePollTimer()
     if ((message = mNetif.GetIp6().mMessagePool.New(Message::kTypeMacDataPoll, 0)) != NULL)
     {
         SendMessage(*message);
-        otLogInfoMac("Sent poll\n");
+        otLogInfoMac("Sent poll");
     }
 
     mPollTimer.Start(mPollPeriod);
@@ -1239,7 +1239,7 @@ void MeshForwarder::HandleSentFrame(Mac::Frame &aFrame, ThreadError aError)
             if ((child->mMode & Mle::ModeTlv::kModeRxOnWhenIdle) == 0)
             {
                 child->mQueuedIndirectMessageCnt--;
-                otLogDebgMac("Sent to child (0x%x), still queued message (%d)\n",
+                otLogDebgMac("Sent to child (0x%x), still queued message (%d)",
                              child->mValid.mRloc16, child->mQueuedIndirectMessageCnt);
 
                 if (child->mQueuedIndirectMessageCnt == 0)
diff --git a/src/core/thread/meshcop_dataset_manager.cpp b/src/core/thread/meshcop_dataset_manager.cpp
index 7f5643660..1e78345c2 100644
--- a/src/core/thread/meshcop_dataset_manager.cpp
+++ b/src/core/thread/meshcop_dataset_manager.cpp
@@ -201,7 +201,7 @@ ThreadError DatasetManager::Register(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent dataset to leader\n");
+    otLogInfoMeshCoP("sent dataset to leader");
 
 exit:
 
@@ -231,7 +231,7 @@ void DatasetManager::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo
                  header.GetTokenLength() == sizeof(mCoapToken) &&
                  memcmp(mCoapToken, header.GetToken(), sizeof(mCoapToken)) == 0, ;);
 
-    otLogInfoMeshCoP("received response from leader\n");
+    otLogInfoMeshCoP("received response from leader");
 
 exit:
     return;
@@ -556,7 +556,7 @@ ThreadError DatasetManager::SendSetRequest(const otOperationalDataset &aDataset,
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent dataset set request to leader\n");
+    otLogInfoMeshCoP("sent dataset set request to leader");
 
 exit:
 
@@ -607,7 +607,7 @@ ThreadError DatasetManager::SendGetRequest(const uint8_t *aTlvTypes, const uint8
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent dataset get request to leader\n");
+    otLogInfoMeshCoP("sent dataset get request to leader");
 
 exit:
 
@@ -642,7 +642,7 @@ void DatasetManager::SendSetResponse(const Coap::Header &aRequestHeader, const I
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent dataset set response\n");
+    otLogInfoMeshCoP("sent dataset set response");
 
 exit:
 
@@ -687,7 +687,7 @@ void DatasetManager::SendGetResponse(const Coap::Header &aRequestHeader, const I
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent dataset get response\n");
+    otLogInfoMeshCoP("sent dataset get response");
 
 exit:
 
@@ -974,7 +974,7 @@ void PendingDataset::ResetDelayTimer(uint8_t aFlags)
             else
             {
                 mTimer.Start(delayTimer->GetDelayTimer());
-                otLogInfoMeshCoP("delay timer started\n");
+                otLogInfoMeshCoP("delay timer started");
             }
         }
     }
@@ -1025,7 +1025,7 @@ void PendingDataset::HandleTimer(void)
 {
     DelayTimerTlv *delayTimer;
 
-    otLogInfoMeshCoP("pending delay timer expired\n");
+    otLogInfoMeshCoP("pending delay timer expired");
 
     UpdateDelayTimer();
     delayTimer = static_cast<DelayTimerTlv *>(mNetwork.Get(Tlv::kDelayTimer));
diff --git a/src/core/thread/mle.cpp b/src/core/thread/mle.cpp
index 16dc9fbdc..da05dac93 100644
--- a/src/core/thread/mle.cpp
+++ b/src/core/thread/mle.cpp
@@ -294,7 +294,7 @@ ThreadError Mle::Discover(uint32_t aScanChannels, uint16_t aScanDuration, uint16
 
     mIsDiscoverInProgress = true;
 
-    otLogInfoMle("Sent discovery request\n");
+    otLogInfoMle("Sent discovery request");
 
 exit:
 
@@ -391,7 +391,7 @@ ThreadError Mle::SetStateDetached(void)
     mMleRouter.HandleDetachStart();
     mNetif.GetIp6().SetForwardingEnabled(false);
 
-    otLogInfoMle("Mode -> Detached\n");
+    otLogInfoMle("Mode -> Detached");
     return kThreadError_None;
 }
 
@@ -430,7 +430,7 @@ ThreadError Mle::SetStateChild(uint16_t aRloc16)
         mNetif.GetAnnounceBeginServer().SendAnnounce(1 << mPreviousChannel);
     }
 
-    otLogInfoMle("Mode -> Child\n");
+    otLogInfoMle("Mode -> Child");
     return kThreadError_None;
 }
 
@@ -1253,11 +1253,11 @@ ThreadError Mle::SendParentRequest(void)
     switch (mParentRequestState)
     {
     case kParentRequestRouter:
-        otLogInfoMle("Sent parent request to routers\n");
+        otLogInfoMle("Sent parent request to routers");
         break;
 
     case kParentRequestChild:
-        otLogInfoMle("Sent parent request to all devices\n");
+        otLogInfoMle("Sent parent request to all devices");
         break;
 
     default:
@@ -1305,7 +1305,7 @@ ThreadError Mle::SendChildIdRequest(void)
     destination.mFields.m16[0] = HostSwap16(0xfe80);
     destination.SetIid(mParent.mMacAddr);
     SuccessOrExit(error = SendMessage(*message, destination));
-    otLogInfoMle("Sent Child ID Request\n");
+    otLogInfoMle("Sent Child ID Request");
 
     if ((mDeviceMode & ModeTlv::kModeRxOnWhenIdle) == 0)
     {
@@ -1337,7 +1337,7 @@ ThreadError Mle::SendDataRequest(const Ip6::Address &aDestination, const uint8_t
 
     SuccessOrExit(error = SendMessage(*message, aDestination));
 
-    otLogInfoMle("Sent Data Request\n");
+    otLogInfoMle("Sent Data Request");
 
 exit:
 
@@ -1414,7 +1414,7 @@ ThreadError Mle::SendChildUpdateRequest(void)
     destination.SetIid(mParent.mMacAddr);
     SuccessOrExit(error = SendMessage(*message, destination));
 
-    otLogInfoMle("Sent Child Update Request\n");
+    otLogInfoMle("Sent Child Update Request");
 
     if ((mDeviceMode & ModeTlv::kModeRxOnWhenIdle) == 0)
     {
@@ -1461,7 +1461,7 @@ ThreadError Mle::SendAnnounce(uint8_t aChannel)
     destination.mFields.m16[7] = HostSwap16(0x0001);
     SuccessOrExit(error = SendMessage(*message, destination));
 
-    otLogInfoMle("sent announce on channel %d\n", aChannel);
+    otLogInfoMle("sent announce on channel %d", aChannel);
 
 exit:
 
@@ -1714,7 +1714,7 @@ void Mle::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageIn
         {
             if (frameCounter < neighbor->mValid.mMleFrameCounter)
             {
-                otLogDebgMle("mle frame reject 1\n");
+                otLogDebgMle("mle frame reject 1");
                 ExitNow();
             }
         }
@@ -1722,7 +1722,7 @@ void Mle::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageIn
         {
             if (keySequence <= neighbor->mKeySequence)
             {
-                otLogDebgMle("mle frame reject 2\n");
+                otLogDebgMle("mle frame reject 2");
                 ExitNow();
             }
 
@@ -1744,7 +1744,7 @@ void Mle::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageIn
               command == Header::kCommandChildUpdateRequest ||
               command == Header::kCommandAnnounce))
         {
-            otLogDebgMle("mle sequence unknown! %d\n", command);
+            otLogDebgMle("mle sequence unknown! %d", command);
             ExitNow();
         }
     }
@@ -1830,7 +1830,7 @@ ThreadError Mle::HandleAdvertisement(const Message &aMessage, const Ip6::Message
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kLeaderData, sizeof(leaderData), leaderData));
     VerifyOrExit(leaderData.IsValid(), error = kThreadError_Parse);
 
-    otLogInfoMle("Received advertisement from %04x\n", sourceAddress.GetRloc16());
+    otLogInfoMle("Received advertisement from %04x", sourceAddress.GetRloc16());
 
     if (mDeviceState != kDeviceStateDetached)
     {
@@ -1907,7 +1907,7 @@ ThreadError Mle::HandleDataResponse(const Message &aMessage, const Ip6::MessageI
     bool dataRequest = false;
     Tlv tlv;
 
-    otLogInfoMle("Received Data Response\n");
+    otLogInfoMle("Received Data Response");
 
     // Leader Data
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kLeaderData, sizeof(leaderData), leaderData));
@@ -2093,7 +2093,7 @@ ThreadError Mle::HandleParentResponse(const Message &aMessage, const Ip6::Messag
     ChallengeTlv challenge;
     int8_t diff;
 
-    otLogInfoMle("Received Parent Response\n");
+    otLogInfoMle("Received Parent Response");
 
     // Response
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kResponse, sizeof(response), response));
@@ -2232,7 +2232,7 @@ ThreadError Mle::HandleChildIdResponse(const Message &aMessage, const Ip6::Messa
     uint16_t offset;
     uint8_t numRouters = 0;
 
-    otLogInfoMle("Received Child ID Response\n");
+    otLogInfoMle("Received Child ID Response");
 
     VerifyOrExit(mParentRequestState == kChildIdRequest, ;);
 
@@ -2346,7 +2346,7 @@ ThreadError Mle::HandleChildUpdateResponse(const Message &aMessage, const Ip6::M
     NetworkDataTlv networkData;
     uint8_t tlvs[] = {Tlv::kNetworkData};
 
-    otLogInfoMle("Received Child Update Response\n");
+    otLogInfoMle("Received Child Update Response");
 
     // Status
     if (Tlv::GetTlv(aMessage, Tlv::kStatus, sizeof(status), status) == kThreadError_None)
@@ -2457,7 +2457,7 @@ ThreadError Mle::HandleAnnounce(const Message &aMessage, const Ip6::MessageInfo
     const MeshCoP::Timestamp *localTimestamp;
     PanIdTlv panid;
 
-    otLogInfoMle("Received announce\n");
+    otLogInfoMle("Received announce");
 
     SuccessOrExit(Tlv::GetTlv(aMessage, Tlv::kChannel, sizeof(channel), channel));
     VerifyOrExit(channel.IsValid(),);
@@ -2504,7 +2504,7 @@ ThreadError Mle::HandleDiscoveryRequest(const Message &aMessage, const Ip6::Mess
     uint16_t offset;
     uint16_t end;
 
-    otLogInfoMle("Received discovery request\n");
+    otLogInfoMle("Received discovery request");
 
     // only Routers and REEDs respond
     VerifyOrExit((mDeviceMode & ModeTlv::kModeFFD) != 0, ;);
@@ -2636,7 +2636,7 @@ ThreadError Mle::SendDiscoveryResponse(const Ip6::Address &aDestination, uint16_
 
     SuccessOrExit(error = SendMessage(*message, aDestination));
 
-    otLogInfoMle("Sent discovery response\n");
+    otLogInfoMle("Sent discovery response");
 
 exit:
 
@@ -2663,7 +2663,7 @@ ThreadError Mle::HandleDiscoveryResponse(const Message &aMessage, const Ip6::Mes
     uint16_t offset;
     uint16_t end;
 
-    otLogInfoMle("Handle discovery response\n");
+    otLogInfoMle("Handle discovery response");
 
     VerifyOrExit(mIsDiscoverInProgress, error = kThreadError_Drop);
 
diff --git a/src/core/thread/mle_router.cpp b/src/core/thread/mle_router.cpp
index 48ed878bc..bb33bfdb6 100644
--- a/src/core/thread/mle_router.cpp
+++ b/src/core/thread/mle_router.cpp
@@ -156,7 +156,7 @@ uint8_t MleRouter::AllocateRouterId(uint8_t aRouterId)
     mRouterIdSequenceLastUpdated = Timer::GetNow();
     rval = aRouterId;
 
-    otLogInfoMle("add router id %d\n", aRouterId);
+    otLogInfoMle("add router id %d", aRouterId);
 
 exit:
     return rval;
@@ -164,7 +164,7 @@ exit:
 
 ThreadError MleRouter::ReleaseRouterId(uint8_t aRouterId)
 {
-    otLogInfoMle("delete router id %d\n", aRouterId);
+    otLogInfoMle("delete router id %d", aRouterId);
     mRouters[aRouterId].mAllocated = false;
     mRouters[aRouterId].mReclaimDelay = true;
     mRouters[aRouterId].mState = Neighbor::kStateInvalid;
@@ -360,7 +360,7 @@ ThreadError MleRouter::SetStateRouter(uint16_t aRloc16)
     mStateUpdateTimer.Start(kStateUpdatePeriod);
     mNetif.GetIp6().SetForwardingEnabled(true);
 
-    otLogInfoMle("Mode -> Router\n");
+    otLogInfoMle("Mode -> Router");
     return kThreadError_None;
 }
 
@@ -387,7 +387,7 @@ ThreadError MleRouter::SetStateLeader(uint16_t aRloc16)
     mCoapServer.AddResource(mAddressRelease);
     mNetif.GetIp6().SetForwardingEnabled(true);
 
-    otLogInfoMle("Mode -> Leader %d\n", mLeaderData.GetPartitionId());
+    otLogInfoMle("Mode -> Leader %d", mLeaderData.GetPartitionId());
     return kThreadError_None;
 }
 
@@ -488,7 +488,7 @@ ThreadError MleRouter::SendAdvertisement(void)
     destination.mFields.m16[7] = HostSwap16(0x0001);
     SuccessOrExit(error = SendMessage(*message, destination));
 
-    otLogInfoMle("Sent advertisement\n");
+    otLogInfoMle("Sent advertisement");
 
 exit:
 
@@ -567,7 +567,7 @@ ThreadError MleRouter::SendLinkRequest(Neighbor *aNeighbor)
 
     SuccessOrExit(error = SendMessage(*message, destination));
 
-    otLogInfoMle("Sent link request\n");
+    otLogInfoMle("Sent link request");
 
 exit:
 
@@ -591,7 +591,7 @@ ThreadError MleRouter::HandleLinkRequest(const Message &aMessage, const Ip6::Mes
     TlvRequestTlv tlvRequest;
     uint16_t rloc16;
 
-    otLogInfoMle("Received link request\n");
+    otLogInfoMle("Received link request");
 
     VerifyOrExit(GetDeviceState() == kDeviceStateRouter ||
                  GetDeviceState() == kDeviceStateLeader, ;);
@@ -751,13 +751,13 @@ ThreadError MleRouter::SendLinkAccept(const Ip6::MessageInfo &aMessageInfo, Neig
         SuccessOrExit(error = AddDelayedResponse(*message, aMessageInfo.GetPeerAddr(),
                                                  (otPlatRandomGet() % kMaxResponseDelay) + 1));
 
-        otLogInfoMle("Delayed link accept\n");
+        otLogInfoMle("Delayed link accept");
     }
     else
     {
         SuccessOrExit(error = SendMessage(*message, aMessageInfo.GetPeerAddr()));
 
-        otLogInfoMle("Sent link accept\n");
+        otLogInfoMle("Sent link accept");
     }
 
 exit:
@@ -773,14 +773,14 @@ exit:
 ThreadError MleRouter::HandleLinkAccept(const Message &aMessage, const Ip6::MessageInfo &aMessageInfo,
                                         uint32_t aKeySequence)
 {
-    otLogInfoMle("Received link accept\n");
+    otLogInfoMle("Received link accept");
     return HandleLinkAccept(aMessage, aMessageInfo, aKeySequence, false);
 }
 
 ThreadError MleRouter::HandleLinkAcceptAndRequest(const Message &aMessage, const Ip6::MessageInfo &aMessageInfo,
                                                   uint32_t aKeySequence)
 {
-    otLogInfoMle("Received link accept and request\n");
+    otLogInfoMle("Received link accept and request");
     return HandleLinkAccept(aMessage, aMessageInfo, aKeySequence, true);
 }
 
@@ -985,7 +985,7 @@ ThreadError MleRouter::SendLinkReject(const Ip6::Address &aDestination)
 
     SuccessOrExit(error = SendMessage(*message, aDestination));
 
-    otLogInfoMle("Sent link reject\n");
+    otLogInfoMle("Sent link reject");
 
 exit:
 
@@ -1003,7 +1003,7 @@ ThreadError MleRouter::HandleLinkReject(const Message &aMessage, const Ip6::Mess
 
     (void)aMessage;
 
-    otLogInfoMle("Received link reject\n");
+    otLogInfoMle("Received link reject");
 
     macAddr.Set(aMessageInfo.GetPeerAddr());
 
@@ -1260,7 +1260,7 @@ ThreadError MleRouter::HandleAdvertisement(const Message &aMessage, const Ip6::M
 
     if (partitionId != mLeaderData.GetPartitionId())
     {
-        otLogDebgMle("different partition! %d %d %d %d\n",
+        otLogDebgMle("different partition! %d %d %d %d",
                      leaderData.GetWeighting(), partitionId,
                      mLeaderData.GetWeighting(), mLeaderData.GetPartitionId());
 
@@ -1282,7 +1282,7 @@ ThreadError MleRouter::HandleAdvertisement(const Message &aMessage, const Ip6::M
 
         if (ComparePartitions(routerCount <= 1, leaderData, IsSingleton(), mLeaderData) > 0)
         {
-            otLogDebgMle("trying to migrate\n");
+            otLogDebgMle("trying to migrate");
             BecomeChild(kMleAttachBetterPartition);
         }
 
@@ -1579,7 +1579,7 @@ void MleRouter::UpdateRoutes(const RouteTlv &aRoute, uint8_t aRouterId)
             continue;
         }
 
-        otLogDebgMle("%x: %x %d %d %d %d\n", GetRloc16(i), GetRloc16(mRouters[i].mNextHop),
+        otLogDebgMle("%x: %x %d %d %d %d", GetRloc16(i), GetRloc16(mRouters[i].mNextHop),
                      mRouters[i].mCost, GetLinkCost(i), mRouters[i].mLinkInfo.GetLinkQuality(mMac.GetNoiseFloor()),
                      mRouters[i].mLinkQualityOut);
     }
@@ -1597,7 +1597,7 @@ ThreadError MleRouter::HandleParentRequest(const Message &aMessage, const Ip6::M
     ChallengeTlv challenge;
     Child *child;
 
-    otLogInfoMle("Received parent request\n");
+    otLogInfoMle("Received parent request");
 
     // A Router MUST NOT send an MLE Parent Response if:
 
@@ -1706,7 +1706,7 @@ void MleRouter::HandleStateUpdateTimer(void)
 
     case kDeviceStateRouter:
         // verify path to leader
-        otLogDebgMle("network id timeout = %d\n", GetLeaderAge());
+        otLogDebgMle("network id timeout = %d", GetLeaderAge());
 
         if (GetLeaderAge() >= mNetworkIdTimeout)
         {
@@ -1825,7 +1825,7 @@ void MleRouter::HandleDelayedResponseTimer(void)
             // Send the message.
             if (SendMessage(*message, delayedResponse.GetDestination()) == kThreadError_None)
             {
-                otLogInfoMle("Sent delayed response\n");
+                otLogInfoMle("Sent delayed response");
             }
             else
             {
@@ -1925,7 +1925,7 @@ ThreadError MleRouter::SendParentResponse(Child *aChild, const ChallengeTlv &cha
 
     SuccessOrExit(error = AddDelayedResponse(*message, destination, delay));
 
-    otLogInfoMle("Delayed Parent Response\n");
+    otLogInfoMle("Delayed Parent Response");
 
 exit:
 
@@ -1985,7 +1985,7 @@ ThreadError MleRouter::HandleChildIdRequest(const Message &aMessage, const Ip6::
     Child *child;
     uint8_t numTlvs;
 
-    otLogInfoMle("Received Child ID Request\n");
+    otLogInfoMle("Received Child ID Request");
 
     // Find Child
     macAddr.Set(aMessageInfo.GetPeerAddr());
@@ -2138,7 +2138,7 @@ ThreadError MleRouter::HandleChildUpdateRequest(const Message &aMessage, const I
     uint8_t tlvs[kMaxResponseTlvs];
     uint8_t tlvslength = 0;
 
-    otLogInfoMle("Received Child Update Request\n");
+    otLogInfoMle("Received Child Update Request");
 
     // Find Child
     macAddr.Set(aMessageInfo.GetPeerAddr());
@@ -2233,7 +2233,7 @@ ThreadError MleRouter::HandleDataRequest(const Message &aMessage, const Ip6::Mes
     uint8_t tlvs[4];
     uint8_t numTlvs;
 
-    otLogInfoMle("Received Data Request\n");
+    otLogInfoMle("Received Data Request");
 
     // TLV Request
     SuccessOrExit(error = Tlv::GetTlv(aMessage, Tlv::kTlvRequest, sizeof(tlvRequest), tlvRequest));
@@ -2368,7 +2368,7 @@ ThreadError MleRouter::SendChildIdResponse(Child *aChild)
     destination.SetIid(aChild->mMacAddr);
     SuccessOrExit(error = SendMessage(*message, destination));
 
-    otLogInfoMle("Sent Child ID Response\n");
+    otLogInfoMle("Sent Child ID Response");
 
 exit:
 
@@ -2431,7 +2431,7 @@ ThreadError MleRouter::SendChildUpdateResponse(Child *aChild, const Ip6::Message
 
     SuccessOrExit(error = SendMessage(*message, aMessageInfo.GetPeerAddr()));
 
-    otLogInfoMle("Sent Child Update Response\n");
+    otLogInfoMle("Sent Child Update Response");
 
 exit:
 
@@ -2480,7 +2480,7 @@ ThreadError MleRouter::SendDataResponse(const Ip6::Address &aDestination, const
 
     SuccessOrExit(error = SendMessage(*message, aDestination));
 
-    otLogInfoMle("Sent Data Response\n");
+    otLogInfoMle("Sent Data Response");
 
 exit:
 
@@ -3145,7 +3145,7 @@ ThreadError MleRouter::SendAddressSolicit(ThreadStatusTlv::Status aStatus)
     SuccessOrExit(error = mCoapClient.SendMessage(*message, messageInfo,
                                                   &MleRouter::HandleAddressSolicitResponse, this));
 
-    otLogInfoMle("Sent address solicit to %04x\n", HostSwap16(messageInfo.GetPeerAddr().mFields.m16[7]));
+    otLogInfoMle("Sent address solicit to %04x", HostSwap16(messageInfo.GetPeerAddr().mFields.m16[7]));
 
 exit:
 
@@ -3188,7 +3188,7 @@ ThreadError MleRouter::SendAddressRelease(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mCoapClient.SendMessage(*message, messageInfo, NULL, NULL));
 
-    otLogInfoMle("Sent address release\n");
+    otLogInfoMle("Sent address release");
 
 exit:
 
@@ -3221,7 +3221,7 @@ void MleRouter::HandleAddressSolicitResponse(Coap::Header *aHeader, Message *aMe
 
     VerifyOrExit(aHeader->GetCode() == Coap::Header::kCodeChanged, ;);
 
-    otLogInfoMle("Received address reply\n");
+    otLogInfoMle("Received address reply");
 
     SuccessOrExit(ThreadTlv::GetTlv(*aMessage, ThreadTlv::kStatus, sizeof(statusTlv), statusTlv));
     VerifyOrExit(statusTlv.IsValid() && statusTlv.GetStatus() == statusTlv.kSuccess, ;);
@@ -3306,7 +3306,7 @@ void MleRouter::HandleAddressSolicit(Coap::Header &aHeader, Message &aMessage, c
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable && aHeader.GetCode() == Coap::Header::kCodePost,
                  error = kThreadError_Parse);
 
-    otLogInfoMle("Received address solicit\n");
+    otLogInfoMle("Received address solicit");
 
     SuccessOrExit(error = ThreadTlv::GetTlv(aMessage, ThreadTlv::kExtMacAddress, sizeof(macAddr64Tlv), macAddr64Tlv));
     VerifyOrExit(macAddr64Tlv.IsValid(), error = kThreadError_Parse);
@@ -3375,7 +3375,7 @@ void MleRouter::HandleAddressSolicit(Coap::Header &aHeader, Message &aMessage, c
     }
     else
     {
-        otLogInfoMle("router id requested and provided!\n");
+        otLogInfoMle("router id requested and provided!");
     }
 
     if (IsRouterIdValid(routerId))
@@ -3384,7 +3384,7 @@ void MleRouter::HandleAddressSolicit(Coap::Header &aHeader, Message &aMessage, c
     }
     else
     {
-        otLogInfoMle("router address unavailable!\n");
+        otLogInfoMle("router address unavailable!");
     }
 
 exit:
@@ -3436,7 +3436,7 @@ void MleRouter::SendAddressSolicitResponse(const Coap::Header &aRequestHeader, u
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMle("Sent address reply\n");
+    otLogInfoMle("Sent address reply");
 
 exit:
 
@@ -3464,7 +3464,7 @@ void MleRouter::HandleAddressRelease(Coap::Header &aHeader, Message &aMessage,
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, ;);
 
-    otLogInfoMle("Received address release\n");
+    otLogInfoMle("Received address release");
 
     SuccessOrExit(ThreadTlv::GetTlv(aMessage, ThreadTlv::kRloc16, sizeof(rlocTlv), rlocTlv));
     VerifyOrExit(rlocTlv.IsValid(), ;);
@@ -3497,7 +3497,7 @@ void MleRouter::SendAddressReleaseResponse(const Coap::Header &aRequestHeader, c
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMle("Sent address release response\n");
+    otLogInfoMle("Sent address release response");
 
 exit:
 
diff --git a/src/core/thread/network_data.cpp b/src/core/thread/network_data.cpp
index 82a20d70d..0580c9929 100644
--- a/src/core/thread/network_data.cpp
+++ b/src/core/thread/network_data.cpp
@@ -647,7 +647,7 @@ ThreadError NetworkData::SendServerDataNotification(uint16_t aRloc16)
         mLastAttemptWait = true;
     }
 
-    otLogInfoNetData("Sent server data notification\n");
+    otLogInfoNetData("Sent server data notification");
 
 exit:
 
@@ -681,7 +681,7 @@ void NetworkData::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aM
                  header.GetTokenLength() == sizeof(mCoapToken) &&
                  memcmp(mCoapToken, header.GetToken(), sizeof(mCoapToken)) == 0, ;);
 
-    otLogInfoNetData("Server data notification acknowledged\n");
+    otLogInfoNetData("Server data notification acknowledged");
 
 exit:
     (void)aMessageInfo;
diff --git a/src/core/thread/network_data_leader.cpp b/src/core/thread/network_data_leader.cpp
index 53acd2a57..cd12caa8a 100644
--- a/src/core/thread/network_data_leader.cpp
+++ b/src/core/thread/network_data_leader.cpp
@@ -543,7 +543,7 @@ void Leader::HandleServerData(Coap::Header &aHeader, Message &aMessage,
     ThreadNetworkDataTlv networkData;
     ThreadRloc16Tlv rloc16;
 
-    otLogInfoNetData("Received network data registration\n");
+    otLogInfoNetData("Received network data registration");
 
     if (ThreadTlv::GetTlv(aMessage, ThreadTlv::kRloc16, sizeof(rloc16), rloc16) == kThreadError_None)
     {
@@ -683,7 +683,7 @@ void Leader::SendServerDataResponse(const Coap::Header &aRequestHeader, const Ip
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoNetData("Sent network data registration acknowledgment\n");
+    otLogInfoNetData("Sent network data registration acknowledgment");
 
 exit:
 
@@ -749,7 +749,7 @@ void Leader::SendCommissioningGetResponse(const Coap::Header &aRequestHeader, co
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent commissioning dataset get response\n");
+    otLogInfoMeshCoP("sent commissioning dataset get response");
 
 exit:
 
@@ -782,7 +782,7 @@ void Leader::SendCommissioningSetResponse(const Coap::Header &aRequestHeader, co
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, aMessageInfo));
 
-    otLogInfoMeshCoP("sent commissioning dataset set response\n");
+    otLogInfoMeshCoP("sent commissioning dataset set response");
 
 exit:
 
@@ -1136,7 +1136,7 @@ int Leader::AllocateContext(void)
         {
             mContextUsed |= 1 << i;
             rval = i;
-            otLogInfoNetData("Allocated Context ID = %d\n", rval);
+            otLogInfoNetData("Allocated Context ID = %d", rval);
             ExitNow();
         }
     }
@@ -1147,7 +1147,7 @@ exit:
 
 ThreadError Leader::FreeContext(uint8_t aContextId)
 {
-    otLogInfoNetData("Free Context Id = %d\n", aContextId);
+    otLogInfoNetData("Free Context Id = %d", aContextId);
     RemoveContext(aContextId);
     mContextUsed &= ~(1 << aContextId);
     mVersion++;
diff --git a/src/core/thread/network_diag.cpp b/src/core/thread/network_diag.cpp
index 4af48dbf2..a65ec63ae 100644
--- a/src/core/thread/network_diag.cpp
+++ b/src/core/thread/network_diag.cpp
@@ -108,7 +108,7 @@ ThreadError NetworkDiagnostic::SendDiagnosticGet(const Ip6::Address &aDestinatio
 
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoNetDiag("Sent diagnostic get\n");
+    otLogInfoNetDiag("Sent diagnostic get");
 
 exit:
 
@@ -137,7 +137,7 @@ void NetworkDiagnostic::HandleUdpReceive(Message &aMessage, const Ip6::MessageIn
                  header.GetTokenLength() == sizeof(mCoapToken) &&
                  memcmp(mCoapToken, header.GetToken(), sizeof(mCoapToken)) == 0, ;);
 
-    otLogInfoNetDiag("Network Diagnostic message acknowledged\n");
+    otLogInfoNetDiag("Network Diagnostic message acknowledged");
 
 exit:
     (void)aMessageInfo;
@@ -183,7 +183,7 @@ ThreadError NetworkDiagnostic::SendDiagnosticReset(const Ip6::Address &aDestinat
 
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoNetDiag("Sent network diagnostic reset\n");
+    otLogInfoNetDiag("Sent network diagnostic reset");
 
 exit:
 
@@ -292,7 +292,7 @@ void NetworkDiagnostic::HandleDiagnosticGet(Coap::Header &aHeader, Message &aMes
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodeGet, error = kThreadError_Drop);
 
-    otLogInfoNetDiag("Received diagnostic get request\n");
+    otLogInfoNetDiag("Received diagnostic get request");
 
     header.Init();
     header.SetType(Coap::Header::kTypeAcknowledgment);
@@ -308,7 +308,7 @@ void NetworkDiagnostic::HandleDiagnosticGet(Coap::Header &aHeader, Message &aMes
 
     for (uint8_t i = 0; i < numTlvTypes; i++)
     {
-        otLogInfoNetDiag("Received diagnostic get type %d\n", tlvTypeSet[i]);
+        otLogInfoNetDiag("Received diagnostic get type %d", tlvTypeSet[i]);
 
         switch (tlvTypeSet[i])
         {
@@ -446,10 +446,10 @@ void NetworkDiagnostic::HandleDiagnosticGet(Coap::Header &aHeader, Message &aMes
 
     memcpy(&messageInfo, &aMessageInfo, sizeof(messageInfo));
     memset(&messageInfo.mSockAddr, 0, sizeof(messageInfo.mSockAddr));
-    otLogInfoNetDiag("Sending diagnostic get acknowledgment\n");
+    otLogInfoNetDiag("Sending diagnostic get acknowledgment");
     SuccessOrExit(error = mCoapServer.SendMessage(*message, messageInfo));
 
-    otLogInfoNetDiag("Sent diagnostic get acknowledgment\n");
+    otLogInfoNetDiag("Sent diagnostic get acknowledgment");
 
 exit:
 
@@ -475,15 +475,15 @@ void NetworkDiagnostic::HandleDiagnosticReset(Coap::Header &aHeader, Message &aM
     Message *message = NULL;
     Coap::Header header;
     Ip6::MessageInfo messageInfo;
-    otLogInfoNetDiag("Received diagnostic reset request\n");
+    otLogInfoNetDiag("Received diagnostic reset request");
 
     VerifyOrExit(aHeader.GetType() == Coap::Header::kTypeConfirmable &&
                  aHeader.GetCode() == Coap::Header::kCodePost, error = kThreadError_Drop);
 
-    otLogInfoNetDiag("Received diagnostic reset request\n");
+    otLogInfoNetDiag("Received diagnostic reset request");
     numTlvTypes = aMessage.Read(aMessage.GetOffset(), kNumResetTlvTypes, tlvTypeSet);
 
-    otLogInfoNetDiag("Received diagnostic reset request\n");
+    otLogInfoNetDiag("Received diagnostic reset request");
 
     for (uint8_t i = 0; i < numTlvTypes; i++)
     {
@@ -497,10 +497,10 @@ void NetworkDiagnostic::HandleDiagnosticReset(Coap::Header &aHeader, Message &aM
         }
     }
 
-    otLogInfoNetDiag("Received diagnostic reset request\n");
+    otLogInfoNetDiag("Received diagnostic reset request");
     VerifyOrExit((message = mSocket.NewMessage(0)) != NULL, error = kThreadError_NoBufs);
 
-    otLogInfoNetDiag("Received diagnostic reset request\n");
+    otLogInfoNetDiag("Received diagnostic reset request");
     header.Init();
     header.SetType(Coap::Header::kTypeAcknowledgment);
     header.SetCode(Coap::Header::kCodeChanged);
@@ -514,7 +514,7 @@ void NetworkDiagnostic::HandleDiagnosticReset(Coap::Header &aHeader, Message &aM
 
     SuccessOrExit(error = mCoapServer.SendMessage(*message, messageInfo));
 
-    otLogInfoNetDiag("Sent diagnostic reset acknowledgment\n");
+    otLogInfoNetDiag("Sent diagnostic reset acknowledgment");
 
 exit:
 
diff --git a/src/core/thread/panid_query_server.cpp b/src/core/thread/panid_query_server.cpp
index a680510a7..84210e273 100644
--- a/src/core/thread/panid_query_server.cpp
+++ b/src/core/thread/panid_query_server.cpp
@@ -125,7 +125,7 @@ ThreadError PanIdQueryServer::SendQueryResponse(const Coap::Header &aRequestHead
     memset(&responseInfo.mSockAddr, 0, sizeof(responseInfo.mSockAddr));
     SuccessOrExit(error = mCoapServer.SendMessage(*message, responseInfo));
 
-    otLogInfoMeshCoP("sent panid query response\n");
+    otLogInfoMeshCoP("sent panid query response");
 
 exit:
 
@@ -214,7 +214,7 @@ ThreadError PanIdQueryServer::SendConflict(void)
     messageInfo.mPeerPort = kCoapUdpPort;
     SuccessOrExit(error = mSocket.SendTo(*message, messageInfo));
 
-    otLogInfoMeshCoP("sent panid conflict\n");
+    otLogInfoMeshCoP("sent panid conflict");
 
 exit:
 
@@ -233,14 +233,13 @@ void PanIdQueryServer::HandleTimer(void *aContext)
 
 void PanIdQueryServer::HandleTimer(void)
 {
-    otLogInfoMeshCoP("%x\n", mChannelMask);
     mNetif.GetMac().ActiveScan(mChannelMask, 0, HandleScanResult, this);
     mChannelMask = 0;
 }
 
 void PanIdQueryServer::HandleUdpReceive(void *aContext, otMessage aMessage, const otMessageInfo *aMessageInfo)
 {
-    otLogInfoMeshCoP("received panid conflict response\n");
+    otLogInfoMeshCoP("received panid conflict response");
     (void)aContext;
     (void)aMessage;
     (void)aMessageInfo;