update manager doesn't show an ok button after update.

[Stefan Beller]

After the update, which went fine, there was only a button labeled "restart".
However I would like to only close the update manager and perform the restart at another time.
There was no close button in the gui itself nor at the window title bar.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: update-manager 1:0.174.3
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Fri Nov 16 12:10:42 2012
EcryptfsInUse: Yes
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1353064019'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'580'
 b'com.ubuntu.update-manager' b'window-width' b'1022'
InstallationDate: Installed on 2012-07-27 (111 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to quantal on 2012-10-20 (26 days ago)

[Sami Jaktholm (sjakthol)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1033226, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.