git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at b910812 avcodec/x86/h264_qpel: Add and use ff_{avg,put}_pixels16x16_l2_sse2()
b91081274f5a5b5f0f1ce820331f702378a425e8