git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at f5eb11a avcodec/decode: add missing syncing of side_data_pref_mask to worker threads
f5eb11a71d64660543809cbe2aa6c4d6f4aff96c