Add compatibility support for specifing IPv4 aliases in rc.conf without the "inet" keyword.
Add compatibility support for specifing IPv4 aliases in
rc.conf without the "inet" keyword.

Obtained from:	hrs

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