Mercurial CA Certificates

[Alexander Kapshuk]

How do I add an CA Certificate for Mercurial on FreeBSD please?

:; uname -a
FreeBSD box2 9.0-RELEASE-p4 FreeBSD 9.0-RELEASE-p4 #0: Fri Aug 17 
21:53:39 EEST 2012     root at box2:/usr/obj/usr/src/sys/GENERIC  i386

:; pkg_info -xc mercurial | sed 1q
Information for mercurial-2.3:

Thanks.