Add missing file for revision #8090

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8092 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/serializers/xml_serializer.rb

@@ -52,7 +52,7 @@ module Serialization
     #     <id type="integer">1</id>
     #     <rating type="integer">1</rating>
     #     <name>37signals</name>
-    #     <clients>
+    #     <clients type="array">
     #       <client>
     #         <rating type="integer">1</rating>
     #         <name>Summit</name>