Comment 0 for bug 1174791

.disk/info in a built image of raring does not have version string "13.04" like:
Ubuntu "Raring" - Build i386 LIVE Binary 20130430-06:50

expected content is like:
Ubuntu 13.04 "Raring" - Build i386 LIVE Binary 20130430-06:50

ubuntu-defaults-builder using live-build is also affected.

Missing version number is invalid for usb-creator and cause an error, then failed to create usb startup disk.

====
usb-creator 2013-05-01 00:00:44,056 (ERROR) install.py:160: Exception raised:
Traceback (most recent call last):
<snip>
  File "/usr/lib/python3/dist-packages/debian/debian_support.py", line 119, in __setattr__
    self._set_full_version(str(value))
  File "/usr/lib/python3/dist-packages/debian/debian_support.py", line 98, in _set_full_version
    raise ValueError("Invalid version string %r" % version)
ValueError: Invalid version string '"Raring"'
usb-creator 2013-05-01 00:00:44,058 (CRITICAL) install.py:99: An uncaught exception was raised:
Invalid version string '"Raring"'
usb-creator 2013-05-01 00:00:44,058 (ERROR) frontend.py:724: Installation failed.
Traceback (most recent call last):
<snip>
  File "/usr/lib/python3/dist-packages/debian/debian_support.py", line 119, in __setattr__
    self._set_full_version(str(value))
  File "/usr/lib/python3/dist-packages/debian/debian_support.py", line 98, in _set_full_version
    raise ValueError("Invalid version string %r" % version)
ValueError: Invalid version string '"Raring"'

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: live-build 3.0~a57-1ubuntu6
ProcVersionSignature: User Name 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: coretemp kvm_intel kvm rfcomm bnep bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec i2400m_usb uvcvideo i2400m wimax videobuf2_vmalloc videobuf2_memops videobuf2_core videodev iwldvm mac_hid mac80211 iwlwifi fujitsu_laptop lpc_ich cfg80211 mei rtsx_pci_ms memstick rtsx_pci_sdmmc r8169 i915 rtsx_pci i2c_algo_bit drm_kms_helper drm
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Tue Apr 30 14:47:43 2013
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=screen-bce
 PATH=(custom, no user)
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
SourcePackage: live-build
UpgradeStatus: No upgrade log present (probably fresh install)