[cli] align autostart command (#2755)

src/cli/README.md

@@ -74,21 +74,21 @@ OpenThread test scripts use the CLI to execute test cases.
 
 ## OpenThread Command Details
 
-### autostart true
+### autostart enable
 
 Automatically start Thread on initialization.
 
 ```bash
-> autostart true
+> autostart enable
 Done
 ```
 
-### autostart false
+### autostart disable
 
 Don't automatically start Thread on initialization.
 
 ```bash
-> autostart false
+> autostart disable
 Done
 ```
 
@@ -98,7 +98,7 @@ Show the status of automatically starting Thread on initialization.
 
 ```bash
 > autostart
-false
+Disabled
 Done
 ```
 

src/cli/cli.cpp

@@ -415,18 +415,18 @@ void Interpreter::ProcessAutoStart(int argc, char *argv[])
     {
         if (otThreadGetAutoStart(mInstance))
         {
-            mServer->OutputFormat("true\r\n");
+            mServer->OutputFormat("Enabled\r\n");
         }
         else
         {
-            mServer->OutputFormat("false\r\n");
+            mServer->OutputFormat("Disabled\r\n");
         }
     }
-    else if (strcmp(argv[0], "true") == 0)
+    else if (strcmp(argv[0], "enable") == 0)
     {
         error = otThreadSetAutoStart(mInstance, true);
     }
-    else if (strcmp(argv[0], "false") == 0)
+    else if (strcmp(argv[0], "disable") == 0)
     {
         error = otThreadSetAutoStart(mInstance, false);
     }