speed up test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1642235 13f79535-47bb-0310-9956-ffa450edef68
doc fixes found by doclint

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1642252 13f79535-47bb-0310-9956-ffa450edef68
fix test bug

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1642254 13f79535-47bb-0310-9956-ffa450edef68