function run()
 {
     CRM_CiviMailchimp_BAO_SyncLog::clearAllMessages();
     $session = CRM_Core_Session::singleton();
     $session->setStatus(ts("All unread CiviMailchimp log messages cleared."), '', 'success');
     $url = CRM_Utils_System::url('civicrm/admin/mailchimp/log', 'reset=1');
     CRM_Utils_System::redirect($url);
     parent::run();
 }