git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 93e53e2 avcodec/vc1dsp: Fix vc1op_pixels_func semantics
93e53e253a5b723db18cf3c804569191cb1d610a