protected function alterForm( HTMLForm $form ) {
$form->setWrapperLegendMsg( 'filerevert-legend' );
$form->setSubmitTextMsg( 'filerevert-submit' );
protected function alterForm( HTMLForm $form ) {
$form->setWrapperLegendMsg( 'filerevert-legend' );
$form->setSubmitTextMsg( 'filerevert-submit' );