gksu/gksudo hides error messsages when running programs

[Alistair Buxton]

On newer releases gparted is not installed. Thus:

al@al-desktop:~$ gparted
The program 'gparted' is currently not installed. You can install it by typing:
sudo apt-get install gparted
al@al-desktop:~$

But normally you would run gparted as root with gksudo. However, if you do this, and gparted is not installed, gksudo asks for password and then silently exits with no error message:

al@al-desktop:~$ gksudo gparted
al@al-desktop:~$

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gksu 2.0.2-6ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Thu Mar 22 20:50:25 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
SourcePackage: gksu
UpgradeStatus: Upgraded to precise on 2012-02-10 (40 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.