developer is officially maintaining the package.
The rationale for changing this from "tech-pkg" to "pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list). Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.
nsca and send_nsca are remote/passive network service daemons for nagios.
These are orignally from the NetSaint package (NSCA = NetSaint Check Acceptor)