Update getdomainname(3) to reflect that it operates on domain names and not host names.
Update getdomainname(3) to reflect that it operates on
domain names and not host names.

Pointed out by:  bde
Obtained from:  NetBSD

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