- 'timestamps' => 'Timestamps of the revisions to restore. If not set, all ' .
- 'revisions will be restored.',
+ 'timestamps' => array(
+ 'Timestamps of the revisions to restore.',
+ 'If both timestamps and fileids are empty, all will be restored.',
+ ),
+ 'fileids' => array(
+ 'IDs of the file revisions to restore.',
+ 'If both timestamps and fileids are empty, all will be restored.',
+ ),