message: Fix compilation with older Qt versions
diff: @@ -490,7 +490,7 @@ void RDTweakedNativeStyle::drawControl(ControlElement control, const QStyleOptio
  // elide text from the right if there's not enough space
  QFontMetrics metrics(toolopt->font);
  - int space = metrics.horizontalAdvance(QLatin1Char(' '));
  + int space = metrics.width(QLatin1Char(' '));
  textRect = QStyle::visualRect(opt->direction, rect, textRect);
  if(toolopt->toolButtonStyle == Qt::ToolButtonTextOnly)
  