git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
 * [new tag]         n9.0       -> n9.0
 * [new tag]         n9.0.1     -> n9.0.1
 * [new tag]         n9.1-dev   -> n9.1-dev
HEAD is now at 9fc8c78 avutil/encryption_info: reject init info with zero-sized key IDs
9fc8c785e2747c87121ec28f8f10ceab0562384b