Merge branch 'patch-7' into 'master'

Fix `warn_user_is_not_gitlab`

Closes #5896

See merge request gitlab-org/gitlab-ee!5736

lib/tasks/gitlab/cleanup.rake

@@ -48,7 +48,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Cleanup | Delete moved repositories"
-    task moved: :environment  do
+    task moved: :gitlab_environment  do
       warn_user_is_not_gitlab
       remove_flag = ENV['REMOVE']