pfctl.8: small cleanups
- show -R with -s in options list
- show -t with -T in options list
- sort the -T commands
- small text/formatting tweaks
ok sthen
ok kn on an earlier version
Obtained from: OpenBSD, jmc <jmc@openbsd.org>, bc345da85f
Sponsored by: Rubicon Communications, LLC ("Netgate")