message: Changed `EventHandler::quit_event()` to use `debug!`
diff: @@ -154,7 +154,7 @@ pub trait EventHandler {
  /// Called upon a quit event. If it returns true,
  /// the game does not exit.
  fn quit_event(&mut self, _ctx: &mut Context) -> bool {
  - println!("quit_event() callback called, quitting...");
  + debug!("quit_event() callback called, quitting...");
  false
  }
  