Fix CHANGES.txt. Some changes have been committed under 0.21.1 section rather than 0.22.0.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.22@1207705 13f79535-47bb-0310-9956-ffa450edef68

hdfs/CHANGES.txt

@@ -666,6 +666,15 @@ Release 0.22.0 - Unreleased
     HDFS-2514. Link resolution bug for intermediate symlinks with
     relative targets. (eli)
 
+    HDFS-1786. Some cli test cases expect a "null" message
+    (Uma Maheswara Rao G via todd)
+
+    HDFS-1855. TestDatanodeBlockScanner.testBlockCorruptionRecoveryPolicy()
+    part 2 fails in two different ways. (Matt Foley via eli)
+
+    HDFS-2346. TestHost2NodesMap & TestReplicasMap will fail depending upon
+    execution order of test methods (Laxman, Uma Maheswara Rao G via shv)
+
 Release 0.21.1 - Unreleased
 
   IMPROVEMENTS
@@ -718,15 +727,6 @@ Release 0.21.1 - Unreleased
     HDFS-1596. Replace fs.checkpoint.* with dfs.namenode.checkpoint.*
     in documentations.  (Harsh J Chouraria via szetszwo)
 
-    HDFS-1786. Some cli test cases expect a "null" message
-    (Uma Maheswara Rao G via todd)
-
-    HDFS-1855. TestDatanodeBlockScanner.testBlockCorruptionRecoveryPolicy()
-    part 2 fails in two different ways. (Matt Foley via eli)
-
-    HDFS-2346. TestHost2NodesMap & TestReplicasMap will fail depending upon
-    execution order of test methods (Laxman, Uma Maheswara Rao G via shv)
-
 Release 0.21.0 - 2010-08-13
 
   INCOMPATIBLE CHANGES