git: f83ac37f1e66..d1b143ee9a5c - vendor/expat - vendor branch updated

[Eric van Gyzen]

The branch vendor/expat has been updated by vangyzen:

URL: https://cgit.FreeBSD.org/src/log/?id=f83ac37f1e66..d1b143ee9a5c

d1b143ee9a5c Vendor import of expat 2.4.6