Update CHANGES.txt for HDFS-6951

(cherry picked from commit 7498dd790eca39c142229a75c2801b5bf4b94983)

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

@@ -365,6 +365,9 @@ Release 2.6.0 - UNRELEASED
 
     HDFS-7005. DFS input streams do not timeout.
 
+    HDFS-6951. Correctly persist raw namespace xattrs to edit log and fsimage.
+    (clamb via wang)
+
     BREAKDOWN OF HDFS-6134 AND HADOOP-10150 SUBTASKS AND RELATED JIRAS
   
       HDFS-6387. HDFS CLI admin tool for creating & deleting an