SOLR-6715: ZkSolrResourceLoader constructors accept a parameter called 'collection' but it should be 'configName'

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1637296 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6715: Fix javadoc warning

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1637299 13f79535-47bb-0310-9956-ffa450edef68