Add better sshd startup scripts; specifically, allow restarting and
stopping the server.

Martti's submission did not include -h, which I added because if I had
added the scripts the way he submitted them, the server wouldn't be
started on startup.

PR: 10196
Submitted by: Martti Kuparinen <martti.kuparinen@ericsson.com>
Reviewed by: kris (partially)
No response: maintainers (PR opened February 22, 1999)