Mention the hostname variable in /etc/rc.conf since that is the most common way of setting the hostname.  The man page already mentioned that the hostname is set by /etc/rc.network, so this just explains where /etc/rc.network gets the hostname from.
Mention the hostname variable in /etc/rc.conf since that is the most
common way of setting the hostname.  The man page already mentioned that
the hostname is set by /etc/rc.network, so this just explains where
/etc/rc.network gets the hostname from.

PR:		docs/14319
Submitted by:	rwatson
Reviewed by:	cmc

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase