xfce4-settings-manager(1) on Linux
The text f39bfd7055c1, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Settings manager for Xfce
Flags it lists
-
--dialog -
--display -
--help -
--help-all -
--help-gtk -
--version -
-? -
-V -
-d