I have a question regarding this part of the code https://github.com/squizlabs/PHP_CodeSniffer/blob/master/src/Runner.php#L223 It will return 1 even if all errors are resolved which later will be set as exit code here https://github.com/squizlabs/PHP_CodeSniffer/blob/master/bin/phpcbf#L19 Everything which is not 0 considered to be error code. But in that case it fixed everything should it return 0 instead ?