No error code when app already enabled/disabled

core/command/app/disable.php

@@ -51,7 +51,6 @@ class Disable extends Command {
 			}
 		} else {
 			$output->writeln('No such app enabled: ' . $appId);
-			return 1;
 		}
 	}
 }

core/command/app/enable.php

@@ -43,7 +43,6 @@ class Enable extends Command {
 		$appId = $input->getArgument('app-id');
 		if (\OC_App::isEnabled($appId)) {
 			$output->writeln($appId . ' is already enabled');
-			return 2;
 		} else if (!\OC_App::getAppPath($appId)) {
 			$output->writeln($appId . ' not found');
 			return 1;