git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 00b4d67 avformat/demux: Allow non opened codec in has_decode_delay_been_guessed()
00b4d678120b7adde95a207a6beaa1578eeb6949