Merge r1594124 from branch-2. YARN-1976. Fix CHANGES.txt for YARN-1976.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.4@1594125 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -1,6 +1,6 @@
 Hadoop YARN Change Log
 
-    YARN-1975. Fix yarn application CLI to print the scheme of the tracking url
+    YARN-1976. Fix yarn application CLI to print the scheme of the tracking url
     of failed/killed applications. (Junping Du via jianhe)
 
     YARN-2016. Fix a bug in GetApplicationsRequestPBImpl to add the missed fields