git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 1d7b14f avformat/wavenc: Omit JUNK for non-seekable -rf64 auto
1d7b14f61d66fdf18f15204c613df9d65396c319