popper(8) on Linux
The text 74d5be51ee0c, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Flags it lists
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-K -
-R -
-S -
-T -
-U -
-c -
-d -
-e -
-k -
-l -
-p -
-s -
-t -
-u -
-v