* @param string|Message $msg Message key (string) for error text, or a Message object
* @param array $params Array with parameters to wfMessage()
*/
- public function __construct( $title, $msg, $params = array() ) {
+ public function __construct( $title, $msg, $params = [] ) {
$this->title = $title;
$this->msg = $msg;
$this->params = $params;