Mike Fleetwood authored Mar 31, 2019 and Curtis Gedak committed Apr 03, 2019

To further help in diagnosing root authorisation issues by reporting the
error message to the terminal too.  Also set a failure exit status when
terminating with this error.

Example:
    $ ./gpartedbin
    GParted 0.33.0-git
    configuration --enable-online-resize
    libparted 3.2
    Root privileges are required for running GParted
    $ echo $?
    1

Closes !34 - Display more version and configuration information