git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 163ba70 avformat/wavdec: Fix use-of-uninitialized-value in find_guid()
163ba704b7f579350d7765951c87882a8a20c54c