/**
  * Show created/updated information in plain text.
  * @param DRAFTABLE_ENTRY $entry
  * @access private
  */
 protected function _echo_plain_text_users($entry)
 {
     if ($entry->time_published->is_valid()) {
         $this->_echo_plain_text_user('Published', $entry->publisher(), $entry->time_published);
         if ($entry->modified()) {
             $this->_echo_plain_text_user('Updated', $entry->modifier(), $entry->time_modified);
         }
     } else {
         parent::_echo_plain_text_users($entry);
     }
 }