git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 1d65e98 fftools/ffmpeg_demux: add options to override mastering display and content light level metadata
1d65e985b338fb0e65b768407df6ff4bcbf5d66e