git version 2.4.0
Removing ffbuild/config.log
From https://git.ffmpeg.org/ffmpeg
 * branch            master     -> FETCH_HEAD
HEAD is now at 1e63151 swscale/output: Fix integer overflow in alpha in yuv2rgba64_1_c_template()
1e63151355342228584e30dab2c53a2cb0d19b42