popper(8) on Linux
The text ea11cf3ef7c0, as Debian 3.0 (Woody) shipped it.
Flags it lists
-
-K -
-R -
-S -
-T -
-U -
-c -
-d -
-e -
-k -
-l -
-p -
-s -
-t -
-u -
-v