workrave -V (return code: 1)
Unable to init server: Could not connect: Connection refused
Failed to initialize: Cannot open display:
workrave --help (return code: 0)
Usage:
workrave [OPTION?]
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-sm-client Show session management options
--help-gtk Show GTK+ Options
Application Options:
--display=DISPLAY X display to use