git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 837cf8e avformat/tls_mbedtls: fix DTLS handshake failure when receiving non-DTLS packets
837cf8e38fa7b4d860ae8a7ef836ce4f94a956d1