git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 4ad20a2 avformat/tls_gnutls: set key and cert when they're PEM string
4ad20a2c09c41f064b367abc6291fba93941db6e