dnssec-signzone(8) on Linux
The text de0aafe7ac41, as Debian 3.0 (Woody) shipped it.
DNSSEC zone signing tool
Flags it lists
-
-a -
-c -
-d -
-e -
-f -
-h -
-i -
-n -
-o -
-p -
-r -
-s -
-t -
-v