Moving HDFS-4080 to Incompatible Change section.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1407572 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -1674,11 +1674,12 @@ Release 0.23.5 - UNRELEASED
 
   INCOMPATIBLE CHANGES
 
+    HDFS-4080. Add a separate logger for block state change logs to enable turning
+    off those logs. (Kihwal Lee via suresh)
+
   NEW FEATURES
 
   IMPROVEMENTS
-    HDFS-4080. Add a separate logger for block state change logs to enable turning
-    off those logs. (Kihwal Lee via suresh)
 
   OPTIMIZATIONS