add diff url

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1440207 13f79535-47bb-0310-9956-ffa450edef68
fix rev id

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1440210 13f79535-47bb-0310-9956-ffa450edef68