postsuper(1) on macOS
The text 4c534dcff171, as Mac OS X 10.5.8, Mac OS X 10.5.7, Mac OS X 10.5.6, Mac OS X 10.5.5, Mac OS X 10.5.4, Mac OS X 10.5.3, Mac OS X 10.5.2, Mac OS X 10.5.1, Mac OS X 10.5 shipped it.
Postfix superintendent
Flags it lists
-
-H -
-c -
-d -
-h -
-p -
-r -
-s -
-v