git: e9bf778aefc1..20de55b07cf9 - vendor/mandoc - vendor branch updated

From: Brooks Davis <brooks_at_FreeBSD.org>
Date: Fri, 06 Dec 2024 20:58:17 UTC
The branch vendor/mandoc has been updated by brooks:

URL: https://cgit.FreeBSD.org/src/log/?id=e9bf778aefc1..20de55b07cf9

20de55b07cf9 Vendor import of mandoc as of 2024-09-22