git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at a8df08f swscale/x86/yuv2yuvX: don't use deprecated hexadecimal prefix
a8df08f6280e14acb7cb9b51013d4a01e14a4ef7