xinetd(8) on Linux
The text 5fe8ed1d3d6e, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
the extended Internet services daemon
Flags it lists
-
-d -
-dontfork -
-inetd_compat -
-pidfile -
-stayalive -
-version