git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at de6bcf5 fftools/ffmpeg_demux: only throttle readrate on the slowest stream
de6bcf5c05e3534ee7874a2ec8c0fc5af527137b