Fix expand_acl tests
Fix expand_acl tests

- Space containing values aren't valid anymore
- Return values are strings

friendica/friendica,fabrixxm/friendica,annando/friendica,annando/friendica,tobiasd/friendica,fabrixxm/friendica,fabrixxm/friendica,tobiasd/friendica,annando/friendica,annando/friendica,friendica/friendica,fabrixxm/friendica,tobiasd/friendica,friendica/friendica,tobiasd/friendica,tobiasd/friendica,fabrixxm/friendica,friendica/friendica,annando/friendica,friendica/friendica