[style] fix typos (#3451)

examples/platforms/cc2538/diag.c

@@ -50,7 +50,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(argc);
     OT_UNUSED_VARIABLE(aInstance);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }
 

examples/platforms/cc2538/radio.c

@@ -577,7 +577,7 @@ void cc2538RadioProcess(otInstance *aInstance)
         else
 #endif
         {
-            // signal MAC layer for each received frame if promiscous is enabled
+            // signal MAC layer for each received frame if promiscuous is enabled
             // otherwise only signal MAC layer for non-ACK frame
             if (((HWREG(RFCORE_XREG_FRMFILT0) & RFCORE_XREG_FRMFILT0_FRAME_FILTER_EN) == 0) ||
                 (sReceiveFrame.mLength > IEEE802154_ACK_LENGTH))

examples/platforms/efr32/diag.c

@@ -56,7 +56,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(aInstance);
     OT_UNUSED_VARIABLE(argc);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }
 

examples/platforms/gp712/diag.c

@@ -48,7 +48,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(aInstance);
     OT_UNUSED_VARIABLE(argc);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }
 

examples/platforms/kw41z/diag.c

@@ -54,7 +54,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(aInstance);
     OT_UNUSED_VARIABLE(argc);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }
 

examples/platforms/posix/diag.c

@@ -50,7 +50,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(aInstance);
     OT_UNUSED_VARIABLE(argc);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }
 

examples/platforms/posix/uart-posix.c

@@ -309,7 +309,7 @@ void otPlatDebugUart_putchar_raw(int c)
      * in some/many cases duplicate cr because in
      * some cases the log function {ie: Mbed} already
      * includes the CR or LF... but other log functions
-     * do not include cr/lf and expect it appened
+     * do not include cr/lf and expect it appended
      */
     fp = posix_logfile;
 

examples/platforms/posix/uart-windows.c

@@ -100,7 +100,7 @@ otError otPlatUartDisable(void)
     // Set the shutdown event
     SetEvent(s_StopWorkerEvent);
 
-    // Wait for the worker to compelte
+    // Wait for the worker to complete
     WaitForSingleObject(s_WorkerThread, INFINITE);
     
     CloseHandle(s_WorkerThread);

examples/platforms/samr21/diag.c

@@ -50,7 +50,7 @@ void otPlatDiagProcess(otInstance *aInstance, int argc, char *argv[], char *aOut
     OT_UNUSED_VARIABLE(aInstance);
     OT_UNUSED_VARIABLE(argc);
 
-    // Add more plarform specific diagnostics features here.
+    // Add more platform specific diagnostics features here.
     snprintf(aOutput, aOutputMaxLen, "diag feature '%s' is not supported\r\n", argv[0]);
 }