This is a minor quibble, and possibly a purely personal one, but 'priorly' is not really in common usage.
Index: smtpd.conf.5 =================================================================== RCS file: /cvs/src/usr.sbin/smtpd/smtpd.conf.5,v retrieving revision 1.127 diff -u -p -r1.127 smtpd.conf.5 --- smtpd.conf.5 11 Aug 2015 21:57:24 -0000 1.127 +++ smtpd.conf.5 13 Aug 2015 02:13:00 -0000 @@ -635,7 +635,7 @@ able to establish an SMTP session. .Ic secure may be specified to provide both STARTTLS and SMTPS services. Host certificates may be used for these connections, -and must be priorly declared using the pki directive. +and must be declared beforehand using the pki directive. If .Ic pki is specified,