git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 75d5672 avcodec/mpegaudioenc: Rename MPA_encode_* -> mpa_encode_*
75d5672b4bff50ff47f9ce6835c1c059588dfc44