Move HDFS-4680 in CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1522048 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -34,8 +34,6 @@ Release 2.3.0 - UNRELEASED
     HDFS-4879. Add "blocked ArrayList" collection to avoid CMS full GCs
     (Todd Lipcon via Colin Patrick McCabe)
 
-    HDFS-4680. Audit logging of delegation tokens for MR tracing. (Andrew Wang)
-
   OPTIMIZATIONS
 
   BUG FIXES
@@ -131,6 +129,8 @@ Release 2.1.1-beta - UNRELEASED
 
     HDFS-5150. Allow per NN SPN for internal SPNEGO. (kihwal)
 
+    HDFS-4680. Audit logging of delegation tokens for MR tracing. (Andrew Wang)
+
   OPTIMIZATIONS
 
   BUG FIXES