git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 4ca56d0 avcodec/x86/vp8dsp: Port ff_vp8_luma_dc_wht_sse to xmm regs
4ca56d0f90d0a80ff3e1b1dcff78013e63c26287