Move MAPREDUCE-2531 changes to Release 0.22 section.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1179077 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -331,9 +331,6 @@ Release 0.23.0 - Unreleased
     MAPREDUCE-2539. Fixed NPE in getMapTaskReports in JobClient. (Robert Evans via
     acmurthy) 
 
-    MAPREDUCE-2531. Fixed jobcontrol to downgrade JobID. (Robert Evans via
-    acmurthy) 
-
     MAPREDUCE-1978. Rumen TraceBuilder should provide recursive
     input folder scanning.
 
@@ -2069,6 +2066,9 @@ Release 0.22.0 - Unreleased
     MAPREDUCE-2991. queueinfo.jsp fails to show queue status for Capacity 
     scheduler if queue names contain special symbols. (Priyo Mustafi via shv)
 
+    MAPREDUCE-2531. Fixed jobcontrol to downgrade JobID. (Robert Evans via
+    acmurthy) 
+
 Release 0.21.1 - Unreleased
 
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