[ticket/12072] Fix comment about NEW MEMBERS permission

PHPBB3-12072
Merge remote-tracking branch 'Elsensee/ticket/12072' into develop-olympus

* Elsensee/ticket/12072:
  [ticket/12072] Fix comment about NEW MEMBERS permission
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [ticket/12072] Fix comment about NEW MEMBERS permission