tin(1) on Linux
The text 328d2b4919c5, as Debian 1.2 (Rex), Debian 1.1 (Buzz) shipped it.
A Netnews reader
Flags it lists
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-H -
-P -
-R -
-S -
-U -
-Z -
-c -
-h -
-n -
-q -
-r -
-u -
-v -
-w -
-z