git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 78bfcf0 libavformat: Fix the docs for av_mime_codec_str and ff_make_codec_str
78bfcf003b21ed5cf002f0a6b66a0babfc6cfc06