git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 7018ce1 avcodec/x86/vp6dsp: Avoid packing+unpacking
7018ce14df7b0f1094ef8e21f7154c5c0c513588