fixed a lot of Checkstyle violations reported when trying updating parent pom

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1635424 13f79535-47bb-0310-9956-ffa450edef68
don't check keystore for license header

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1635425 13f79535-47bb-0310-9956-ffa450edef68
use rat version specified by parent

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1635426 13f79535-47bb-0310-9956-ffa450edef68