git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at e5e8efa libavformat/mov.c: Fix seek in fragmented mp4 files where the audio and video streams are written to seperate fragments
e5e8efae5cd1b04bfb0f04735d091d3059458bdf