git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 7af7b86 swscale/ops_chain: check SWS_COMP_GARBAGE instead of next->comps.unused
7af7b8664be292fa998a5d13b9f017829e25adf8