git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 96f82f4 swscale/x86/ops: simplify SWS_OP_CLEAR patterns
96f82f4fbbdc8f7525672bafbf37616ea5fd76ca