PyGIWarnings on start

[dobey]

When apport starts (by running ubuntu-bug, or in case of a crash) the following messages are printed to its stderr:

sys:1: PyGIWarning: Wnck was imported without specifying a version first. Use gi.require_version('Wnck', '3.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: GdkX11 was imported without specifying a version first. Use gi.require_version('GdkX11', '3.0') before import to ensure that the right version gets loaded.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: apport 2.20-0ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-12.28-generic 4.4.4
Uname: Linux 4.4.0-12-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CrashReports:
 600:105:110:0:2016-03-12 11:08:46.905936282 -0500:2016-03-12 11:08:46.905936282 -0500:/var/crash/_usr_lib_xorg_Xorg.0.uploaded
 640:0:110:5480073:2016-03-12 11:08:41.793873548 -0500:2016-03-12 11:08:42.793873548 -0500:/var/crash/_usr_lib_xorg_Xorg.0.crash
 640:1047:110:339644:2016-03-12 11:07:14.474959555 -0500:2016-03-12 11:07:47.304641255 -0500:/var/crash/_usr_bin_synergys.1047.crash
 644:0:110:0:2016-03-12 11:08:44.785904154 -0500:2016-03-12 11:08:44.785904154 -0500:/var/crash/_usr_lib_xorg_Xorg.0.upload
CurrentDesktop: Unity
Date: Sat Mar 12 12:41:15 2016
InstallationDate: Installed on 2012-10-21 (1237 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: Upgraded to xenial on 2016-03-10 (1 days ago)