LUCENE-5871: test bugs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1618063 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5244: Exporting Full Sorted Result Sets

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1618068 13f79535-47bb-0310-9956-ffa450edef68