Change the shebang line from /bin/sh to /bin/ksh in all base rc.d
daemon scripts.

discussed with and OK aja@
OK tb

Remove setproctitle() for the parent process. Because rc.d(8) uses process
titles (including flags) to distinguish between daemons, this makes it
possible to manage multiple copies of a daemon using

Remove setproctitle() for the parent process. Because rc.d(8) uses process
titles (including flags) to distinguish between daemons, this makes it
possible to manage multiple copies of a daemon using the normal infrastructure
by symlinking rc.d scripts to a new name. ok jung@ ajacoutot@, smtpd ok gilles@

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re-add ospfd/ospf6d support which got lost, and build scripts for them