gprostats(8) on Linux
The text 165c6ed9649e, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
statistics generator tool for proftpd
Flags it lists
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-c -
-help -
-html -
-w -
-x