git: 8e6e1224184e..16c0a3151e5f - vendor/nvi - vendor branch updated

[Baptiste Daroussin]

The branch vendor/nvi has been updated by bapt:

URL: https://cgit.FreeBSD.org/src/log/?id=8e6e1224184e..16c0a3151e5f

16c0a3151e5f nvi: import version 2.2.1