Docs improvements to _config

lib/ansible/modules/network/ios/ios_config.py

@@ -94,7 +94,7 @@ options:
         the modified lines are pushed to the device in configuration
         mode.  If the replace argument is set to I(block) then the entire
         command block is pushed to the device in configuration mode if any
-        line is not correct
+        line is not correct.
     required: false
     default: line
     choices: ['line', 'block']
@@ -105,7 +105,7 @@ options:
         cause the module to push the contents of I(src) into the device
         without first checking if already configured.
       - Note this argument should be considered deprecated.  To achieve
-        the equivalient, set the match argument to none.  This argument
+        the equivalent, set the C(match=none) which is idempotent.  This argument
         will be removed in a future release.
     required: false
     default: false
@@ -204,8 +204,8 @@ vars:
 RETURN = """
 updates:
   description: The set of commands that will be pushed to the remote device
-  returned: always
-  type: when lines is defined
+  returned: Only when C(lines) is specified.
+  type: list
   sample: ['...', '...']
 backup_path:
   description: The full path to the backup file