do-release-upgrade displays "upgrade to 15.04" in de when upgrading from 15.04 to 15.10

[Karl-Philipp Richter]

do-release-upgrade displays "upgrade to 15.04" when upgrading from 15.04 to 15.10

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14.3
Uname: Linux 4.2.2-040202-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.6
Architecture: amd64
CrashDB: ubuntu
Date: Fri Oct 23 11:09:44 2015
InstallationDate: Installed on 2015-09-14 (38 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
SystemImageInfo:
 current build number: 0
 device name:
 channel: daily
 last update: Unknown
UpgradeStatus: Upgraded to vivid on 2015-10-23 (0 days ago)
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

It seems that this did not get translated in de.

1762 #: ../data/gtkbuilder/DistUpgrade.ui.h:19
1763 msgid "<b><big>Upgrading Ubuntu to version 15.10</big></b>"
1764 msgstr "<b><big>Ubuntu wird auf Version 15.04 aktualisiert.</big></b>"

[Christian González (droetker)]

Maybe the problem is in /usr/share/ubuntu-release-upgrader/gtkbuilder/DistUpgrade.ui, line 1158:

<property name="label" translatable="yes">&lt;b&gt;&lt;big&gt;Upgrading Ubuntu to version 15.04&lt;/big&gt;&lt;/b&gt;</property>

But changing the line to 15.10 does not help.