Update ControllerTask.php

Added an output message if no controllers are baked using the all() function.
Update ControllerTask.php

Updated if statement for clarity and also fixed spelling mistake.
Removed trailing whitespace.
Update ControllerTask.php

Removed $admin from message in regards to no controllers being baked in all() function
Merge pull request #2628 from pummra/patch-1

Add message to let user know that no controllers were generated.