relayd(8) on OpenBSD
The text c8c98c65a206, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8 shipped it.
relay daemon
Flags it lists
-
-D -
-d -
-f -
-n -
-v