MAPREDUCE-2454 amending to update CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/MR-2454@1414997 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -1,3 +1,8 @@
+Branch MR-2454
+
+   MAPREDUCE-4809. Make internal classes required for MAPREDUCE-2454 to be
+   java public. (masokan via tucu)
+
 Hadoop MapReduce Change Log
 
 Trunk (Unreleased)