message: Fix use of deprecated QFontMetrics::width()
diff: @@ -363,7 +363,7 @@ QRect RDStyle::subControlRect(ComplexControl cc, const QStyleOptionComplex *opt,
  ret.setHeight(labelHeight);
  }
  - ret.setWidth(group->fontMetrics.width(group->text));
  + ret.setWidth(group->fontMetrics.boundingRect(group->text).width());
  return ret;
  }
  