YARN-1. Fixed message in CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1370668 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -26,7 +26,7 @@ Release 2.1.0-alpha - Unreleased
 
   NEW FEATURES
 
-  YARN-1. Promote YARN to be a sub-project of Apache Hadoop. (acmurthy)
+    YARN-1. Promote YARN to be a sub-project of Apache Hadoop. (acmurthy)
 
   IMPROVEMENTS