Allow empty keyring values.

git-svn-id: http://emdebian.org/svn/current@7002 563faec7-e20c-0410-992a-a66f704d0ccd

debian/changelog

@@ -1,3 +1,9 @@
+emdebian-rootfs (2.0.10) unstable; urgency=low
+
+  * Allow empty keyring values.
+
+ -- Neil Williams <codehelp@debian.org>  Sat, 03 Apr 2010 11:18:02 +0100
+
 emdebian-rootfs (2.0.9) unstable; urgency=low
 
   * Fix typos in translated strings.

em_multistrap

@@ -277,6 +277,7 @@ my $k;
 foreach my $pkg (values %keyrings)
 {
 	next if (not defined $pkg);
+	next if ("" eq "$pkg");
 	my $status = `LC_ALL=C dpkg -s $pkg`;
 	next if $status =~ /Status: install ok installed/;
 	$k .= "$pkg ";