calligra(1) on Linux
The text 2e6148bff29d, as Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
Calligra Document Opener
Flags it lists
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--apps -
--author -
--help -
--help-all -
--help-kde -
--help-qt -
--license -
--version -
-v