SOLR-7652: Adding the change log entry to 5.2.1 (it was accidentally deleted)
SOLR-7652: Adding the change log entry to 5.2.1 (it was accidentally deleted)

git-svn-id: 308d55f399f3bd9aa0560a10e81a003040006c48@1685667 13f79535-47bb-0310-9956-ffa450edef68

apache/solr,apache/solr,apache/solr,apache/solr,apache/solr