DOC: Fixed {action}_entity_permissions help line.

src/caosdb/utils/caosdb_admin.py

@@ -621,8 +621,8 @@ USAGE
 
     for action in ["grant", "deny", "revoke_denial", "revoke_grant"]:
         action_entity_permissions_parser = subparsers.add_parser(
-            "{}_entity_permissions".format(action),
-            help="{} entity permissions to a role.".format(action))
+            f"{action}_entity_permissions",
+            help=f"{action} entity permissions to one or more Entities.")
         action_entity_permissions_parser.set_defaults(
             call=do_action_entity_permissions, action=action)
         action_entity_permissions_parser.add_argument(dest="query", metavar="QUERY",