gnome-robots -V (return code: 1)
Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused
(gnome-robots:20354): Gtk-WARNING **: cannot open display:
gnome-robots --help (return code: 0)
Usage:
gnome-robots [OPTION...]
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gapplication Show GApplication options
--help-gtk Show GTK+ Options
Application Options:
--display=DISPLAY X display to use