init(8) on OpenBSD
The text 7586aa3d4e8c, as OpenBSD 6.0, OpenBSD 5.9, OpenBSD 5.8, OpenBSD 5.7, OpenBSD 5.6, OpenBSD 5.5, OpenBSD 5.4, OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1 shipped it.
process control initialization
Flags it lists
-
-f -
-s