git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 2fffa01 avcodec/x86/vp9dsp_init: remove preprocessor checks for some prototypes
2fffa01ddb777871cd53ef6c92f5c19cae8afe16