rndc-confgen(8) on macOS
The text 39fa89c1207e, as Mac OS X 10.4.9.x86, Mac OS X 10.4.9.ppc, Mac OS X 10.4.8.x86 shipped it.
rndc key generation tool
Flags it lists
-
-a -
-b -
-c -
-h -
-k -
-p -
-r -
-s -
-t -
-u