message: rename rightBarView variable
diff: {
  [super layoutSubviews];
  UIView *buttonView = ((UIView *) [self.button valueForKey:@"view"]);
  - UIView *rightBarView = buttonView.superview;
  + UIView *barView = buttonView.superview;
  UIView *labelView = buttonView.subviews.count > 0 ? buttonView.subviews[0] : buttonView;
  - CGRect labelFrameInBar = [buttonView convertRect:labelView.frame toView:rightBarView];
  - self.frame = [rightBarView convertRect:labelFrameInBar toView:nil];
  + CGRect labelFrameInBar = [buttonView convertRect:labelView.frame toView:barView];
  + self.frame = [barView convertRect:labelFrameInBar toView:nil];
  }
  - (void)setTitle:(NSString *)title
  