git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 22d06b3 avfilter/avfilter: fix memory leak of filter name in ff_filter_alloc error path
22d06b39ce0545ce597f090d84f60c1a2b04fd25