git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at af136db avfilter/vf_lcevc: attach a reference to the source frame to each passed in base picture
af136db1c3c5d72c4a71cedaf7b06d2f8ae3819e