fwb_pf(1) on Linux
The text 8c563c331965, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Policy compiler for OpenBSD packet filter "pf"
Flags it lists
-
-V -
-d -
-f -
-o -
-v -
-x