Fix same tiny grammar mistake as in ee
This is a tiny grammar fix that was already merged into EE
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/667#note_14043471
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This is a tiny grammar fix that was already merged into EE
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/667#note_14043471