git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 9e93163 vulkan/ffv1dec: fix FFVkSPIRVCompiler leak
9e9316326812ba62aee8d36c37b1d8fb1fd2ef64