calligraplan(1) on Linux
The text 628301794d79, as Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
KDE Project Planning and Management Tool
Flags it lists
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--author -
--help -
--help-all -
--help-kde -
--help-qt -
--license -
--version -
-v