Make sure the run_and_match function will actuall match group.
Created by: VonC
https://github.com/gitlabhq/gitlabhq/pull/2543 works well except for 'check_gitlab_in_git_group' in 'lib/tasks/gitlab/check.rake'
Since if need to match the gitolite owner group, you need to
add '.*' regexp in order to match the all string returned by id -rnG