tests: some doc improvements around SuppressSSL

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1572385 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5776: Suppress SSL

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1572391 13f79535-47bb-0310-9956-ffa450edef68