git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 9a34ddc avformat/movenc: remove mvex from final mp4 in hybrid_fragmented mode
9a34ddc345ddbc4810799fad65c7fa9d65b15eb1