Fix format string in German translation causing a build failure

Regression introduced in commit af626e0273c7cb61cd9078ee518298ecb79b22b3.

scripts/po/de.po

@@ -7,7 +7,7 @@ msgstr ""
 "Project-Id-Version: dpkg-scripts\n"
 "Report-Msgid-Bugs-To: debian-dpkg@lists.debian.org\n"
 "POT-Creation-Date: 2012-03-08 21:34+0100\n"
-"PO-Revision-Date: 2012-03-08 21:35+0100\n"
+"PO-Revision-Date: 2012-03-09 20:07+0100\n"
 "Last-Translator: Helge Kreutzmann <debian@helgefjell.de>\n"
 "Language-Team: de <debian-l10n-german@lists.debian.org>\n"
 "Language: de\n"
@@ -3425,7 +3425,7 @@ msgstr "Zwei widersprüchliche Werte für Quellpaket - %s und %s"
 #: scripts/Dpkg/Vendor/Debian.pm:87
 #, perl-format
 msgid "unknown host architecture '%s'"
-msgstr "unbekannte Host-Architektur »%«"
+msgstr "unbekannte Host-Architektur »%s«"
 
 #: scripts/Dpkg/Vendor/Debian.pm:113
 #, perl-format