rndc-confgen(8) on macOS
The text e8bd1b3bfa9b, as macOS 10.13.3, macOS 10.13.2, macOS 10.13.1, macOS 10.13 shipped it.
rndc key generation tool
Flags it lists
-
-a -
-b -
-c -
-h -
-k -
-p -
-r -
-s -
-t -
-u