Fix arguments of Rectangle constructor

Change-Id: I8f288e55694ac85f8dcd2884a53ff4b5b9eef02f
diff --git a/vcl/unx/gtk/app/gtksys.cxx b/vcl/unx/gtk/app/gtksys.cxx
index 179bf58..cc921b8 100644
--- a/vcl/unx/gtk/app/gtksys.cxx
+++ b/vcl/unx/gtk/app/gtksys.cxx
@@ -245,7 +245,7 @@ Rectangle GtkSalSystem::GetDisplayScreenPosSizePixel (unsigned int nScreen)
    if (!pScreen)
        return Rectangle();
    gdk_screen_get_monitor_geometry (pScreen, nMonitor, &aRect);
    return Rectangle (aRect.x, aRect.y, aRect.width, aRect.height);
    return Rectangle (Point(aRect.x, aRect.y), Size(aRect.width, aRect.height));
}

Rectangle GtkSalSystem::GetDisplayScreenWorkAreaPosSizePixel (unsigned int nScreen)