gdi32: Don't stackoverflow if substitute doesn't change anything
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53787 Signed-off-by: Fabian Maurer dark.shadow4@web.de
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53787 Signed-off-by: Fabian Maurer dark.shadow4@web.de