use released version of plugin parent, i.e 28

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1710222 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 213b3589b2ae3ef7ef6f108c75a2b2a177a02812
  1. src/
  2. example.sh
  3. pom.xml