git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 1e7d7c4 fftools/ffmpeg_demux: Check metadata provided filename
1e7d7c4f5203a5badc63de82747b5abb1e56b5a0