There have been a substantial number of changes to this file from the NetBSD original, so add our copyright notice as well.
There have been a substantial number of changes to this file from the
NetBSD original, so add our copyright notice as well.

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