Deleted all trailing whitespace.

modules/highgui/src/window_QT.cpp

@@ -2474,7 +2474,7 @@ void DefaultViewPort::saveView()
     if (!fileName.isEmpty()) //save the picture
     {
         QString extension = fileName.right(3);
-        
+
         // Create a new pixmap to render the viewport into
         QPixmap viewportPixmap(viewport()->size());
         viewport()->render(&viewportPixmap);