git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 2799aaa avutil: hwcontext_videotoolbox: support YUYV422 pixel format
2799aaa5af6a54d18b26c044ebbaf937b1a23d43