SVN_SILENT minor fix according to montel

svn path=/trunk/KDE/kdelibs/; revision=889768

paintutils.cpp

@@ -50,7 +50,7 @@ void shadowBlur(QImage &image, int radius, const QColor &color)
 QPixmap shadowText(QString text, QColor textColor, QColor shadowColor, QPoint offset, int radius)
 {
     //don't try to paint stuff on a future null pixmap because the text is empty
-    if (text.size() == 0) {
+    if (text.isEmpty()) {
         return QPixmap();
     }
     // Draw text