Add return value to all commands

Signed-off-by: Joas Schilling <coding@schilljs.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/core/Command/Group/AddUser.php b/core/Command/Group/AddUser.php
index 5cbcbf10145..c941c90d1bc 100644
--- a/core/Command/Group/AddUser.php
+++ b/core/Command/Group/AddUser.php
@@ -61,7 +61,7 @@ class AddUser extends Base {
 			);
 	}
 
-	protected function execute(InputInterface $input, OutputInterface $output) {
+	protected function execute(InputInterface $input, OutputInterface $output): int {
 		$group = $this->groupManager->get($input->getArgument('group'));
 		if (is_null($group)) {
 			$output->writeln('<error>group not found</error>');
@@ -73,5 +73,6 @@ class AddUser extends Base {
 			return 1;
 		}
 		$group->addUser($user);
+		return 0;
 	}
 }