denyhosts config reference

[Brian]

The command args section of /usr/local/etc/rc.d/denyhosts specifies an 
incorrect location of the config file.
Looks like this was reported awhile ago, 
http://lists.freebsd.org/pipermail/freebsd-ports/2006-July/033699.html.

Also, for those who want to run this as a daemon, may I suggest you add the 
necessary rc.conf mod to the message that displays when make install is 
done.

Brian