Use m-site-p 3.3 in ITs to make it M3.1 proof

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1517327 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 2f62aa855d6cf22a9c3f982f9aa9c680ef5c1564
  1. src/
  2. pom.xml