HDFS-5705. Update CHANGES.txt for merging the original fix (r1555190) to branch-2 and branch-2.4.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576989 13f79535-47bb-0310-9956-ffa450edef68

Author: arp7

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

@@ -241,9 +241,6 @@ Trunk (Unreleased)
     HDFS-4366. Block Replication Policy Implementation May Skip Higher-Priority
     Blocks for Lower-Priority Blocks (Derek Dagit via kihwal)
 
-    HDFS-5705. TestSecondaryNameNodeUpgrade#testChangeNsIDFails may fail due
-    to ConcurrentModificationException. (Ted Yu via brandonli)
-
     HDFS-5719. FSImage#doRollback() should close prevState before return
     (Ted Yu via brandonli)
 
@@ -603,6 +600,9 @@ Release 2.4.0 - UNRELEASED
 
     HDFS-6079. Timeout for getFileBlockStorageLocations does not work. (wang)
 
+    HDFS-5705. TestSecondaryNameNodeUpgrade#testChangeNsIDFails may fail due
+    to ConcurrentModificationException. (Ted Yu via brandonli)
+
   BREAKDOWN OF HDFS-5698 SUBTASKS AND RELATED JIRAS
 
     HDFS-5717. Save FSImage header in protobuf. (Haohui Mai via jing9)