git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at b20f42b avformat/tls_openssl: fix DTLS retransmission when packet lost in blocking mode
b20f42b156d9865bb3abdb162a895a82b46fba14