Update some build tools

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1595380 13f79535-47bb-0310-9956-ffa450edef68
Fix fall-through

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1595383 13f79535-47bb-0310-9956-ffa450edef68