gnome-session-properties broken help link

[Thibault D]

Test case :
1. ALT+F2 gnome-session-properties
2. Click on the Help button and check you don't get any "Document Not Found" message but rather an help page.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-session 3.2.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 24 19:44:10 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-session
UpgradeStatus: No upgrade log present (probably fresh install)