gdiplus: Avoid using the comma operator.

Signed-off-by: Michael Stefaniuc <mstefani@winehq.org>
Signed-off-by: Vincent Povirk <vincent@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/gdiplus/brush.c

@@ -67,7 +67,7 @@ GpStatus WINGDIPAPI GdipCloneBrush(GpBrush *brush, GpBrush **clone)
             *clone = heap_alloc_zero(sizeof(GpPathGradient));
             if (!*clone) return OutOfMemory;
 
-            src = (GpPathGradient*) brush,
+            src = (GpPathGradient*) brush;
             dest = (GpPathGradient*) *clone;
 
             memcpy(dest, src, sizeof(GpPathGradient));