[Piglit] [PATCH] Rework the PIGLIT_GL_VISUAL flags, fix RGB vs RGBA vs ALPHA confusion

[Dave Airlie]

>>
>> The patch seems to be too large for a mailing list. It's here:
>>
>>
>> http://cgit.freedesktop.org/~mareko/piglit/commit/?id=8fa85790a3e5a3caba3a6eba912e7858c893363b

LGTM as well!

Dave.