TypeError when running 'ubuntu-bug apt-mirror'

[Robert Collins]

The TypeError occured in apport itself, so probably won't show up as a crash report...

robertc@lifelesshp:~$ ubuntu-bug apt-mirror
Gtk-Message: Failed to load module "overlay-scrollbar"
ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 197, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 92, in add_info
    apport.hookutils.attach_conffiles(report, package, ui=ui)
  File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 135, in attach_conffiles
    if contents == '[deleted]' or contents.startswith('[inaccessible'):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: apport 2.9.2-0ubuntu8
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Uname: Linux 3.8.0-23-generic x86_64
ApportLog:

ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Mon Aug 12 11:08:37 2013
InstallationDate: Installed on 2013-01-13 (210 days ago)
InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: Upgraded to raring on 2013-04-22 (111 days ago)

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for apport (Ubuntu) because there has been no activity for 60 days.]