Description of problem:
Gparted doesn't start 

Version-Release number of selected component (if applicable):
gparted-0.27.0-1

How reproducible:
always

Steps to Reproduce:
1.click on Gparted Icon

2.enter password
3.nothing happens

Actual results:
no Gparted

Expected results:
It should open the graphical window

Additional info:
if started in a terminal as root
 gparted
Created symlink /run/systemd/system/-.mount → /dev/null.
Created symlink /run/systemd/system/boot-efi.mount → /dev/null.
Created symlink /run/systemd/system/boot.mount → /dev/null.
Created symlink /run/systemd/system/home.mount → /dev/null.
Created symlink /run/systemd/system/proc-fs-nfsd.mount → /dev/null.
Created symlink /run/systemd/system/run-user-1000.mount → /dev/null.
Created symlink /run/systemd/system/run-user-42.mount → /dev/null.
Created symlink /run/systemd/system/tmp.mount → /dev/null.
Created symlink /run/systemd/system/var-lib-machines.mount → /dev/null.
Created symlink /run/systemd/system/var-lib-nfs-rpc_pipefs.mount → /dev/null.
No protocol specified

(gpartedbin:3003): Gtk-WARNING **: cannot open display: :0
Removed /run/systemd/system/-.mount.
Removed /run/systemd/system/boot-efi.mount.
Removed /run/systemd/system/boot.mount.
Removed /run/systemd/system/home.mount.
Removed /run/systemd/system/proc-fs-nfsd.mount.
Removed /run/systemd/system/run-user-1000.mount.
Removed /run/systemd/system/run-user-42.mount.
Removed /run/systemd/system/tmp.mount.
Removed /run/systemd/system/var-lib-machines.mount.
Removed /run/systemd/system/var-lib-nfs-rpc_pipefs.mount.