git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at efd6e85 fftools/tf_mermaid: close subgraph header when there are no inputs.
efd6e85abbf8cbea5992554823b27e2e32c8f2c3