Move the ubuntu template generator to use Squeeze.

Newer versions of XenServer don't have lenny templates, so moving
to use Squeeze.

Change-Id: I95473d4cdc6caad86bc53799fe2ecbedd9223026
diff --git a/tools/xen/scripts/xenoneirictemplate.sh b/tools/xen/scripts/xenoneirictemplate.sh
index 1d9ec5e..9e1e9de 100755
--- a/tools/xen/scripts/xenoneirictemplate.sh
+++ b/tools/xen/scripts/xenoneirictemplate.sh
@@ -8,10 +8,10 @@
 BASE_DIR=$(cd $(dirname "$0") && pwd)
 source $BASE_DIR/../../../localrc
 
-LENNY=$(xe template-list name-label=Debian\ Lenny\ 5.0\ \(32-bit\) --minimal)
+LENNY=$(xe template-list name-label=Debian\ Squeeze\ 6.0\ \(32-bit\) --minimal)
 
 if [[ -z $LENNY ]] ; then
-    echo "Cant find lenny 32bit template, is this on 6.0.2?"
+    echo "Cant find Squeeze 32bit template."
     exit 1
 fi