git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at cb0f4de avcodec/nvenc_av1: fix b_ref_mode "middle" help string for AV1
cb0f4de1f56f8db394b72ad887478d386bcf8e8a