git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 387a522 avcodec/libvpxdec: use codec capabilities to determine if external frame buffer can be used
387a522106a72efa6d83a2b6061265d451db6896