git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 3f39783 swscale/ops_chain: simplify ff_sws_compile_op_tables() with int index
3f397833375c8125b8d1a1b89a93671720bb08e5