default to blank if not found, so the join will work
default to blank if not found, so the join will work

git-svn-id: 2ab84e18e69922d6354bab699308d90ee643e1de@1736732 13f79535-47bb-0310-9956-ffa450edef68

apache/steve,apache/steve,apache/steve,apache/steve,apache/steve,apache/steve