make sure to close the IndexInput used to read index version
make sure to close the IndexInput used to read index version

git-svn-id: 4c5078813df38efa56971a28e09a55254294f104@606299 13f79535-47bb-0310-9956-ffa450edef68

tokee/lucene,tokee/lucene,tokee/lucene,tokee/lucene