git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at e7b4ddc avcodec/pngdec: fix dead overflow check in decode_text_to_exif()
e7b4ddc9d6e3f5c871cfbb4ccb7a89f7631fd7d9