xfce4-about(1) on Linux
The text 7fe36258ff9c, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
About and Credits dialog for Xfce
Flags it lists
-
--display -
--help -
--help-all -
--help-gtk -
--version -
-V -
-h