xfce4-display-settings(1) on Linux
The text 6f544453c1e9, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Display settings for Xfce
Flags it lists
-
--display -
--help -
--help-all -
--help-gtk -
--version -
-? -
-v