HDFS-4175. Add the jira to CHANGES.HDFS-2802.txt.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-2802@1411690 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-2802.txt

@@ -78,3 +78,6 @@ Branch-2802 Snapshot (Unreleased)
   szetszwo)
 
   HDFS-4196. Support renaming of snapshots. (Jing Zhao via szetszwo)
+
+  HDFS-4175. Additional snapshot tests for more complicated directory
+  structure and modifications. (Jing Zhao via suresh)