git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 03931e8 libavfilter/vf_amf_common: free the frame allocated by av_frame_alloc on error
03931e88650bb353ecae1a3f45ae176fa5363114