change the flags to be consistent with other OpenBSD daemons -d is `debug' (run in the foreground) -f to load the configuration file adjust regress and contrib accordingly

Improve gmid.service Changed gmid.service to not to fork the server and forced to run under user "gmid". gmid now waits for the network stack beeing available before starting. Also "gmid" is now the syslog id.

add an example systemd unit file