dnssec-signzone(8) on Linux
The text ff0e7746262e, as Debian 4.0 (Etch) shipped it.
DNSSEC zone signing tool
Flags it lists
-
-a -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-k -
-l -
-n -
-o -
-p -
-r -
-s -
-t -
-v -
-z