ksu(1) on Linux
The text 1b24d684cc8e, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Kerberized super-user
Flags it lists
-
-D -
-Z -
-a -
-c -
-f -
-k -
-l -
-n -
-p -
-q -
-r -
-z