Commit CHANGES.txt for HADOOP-3002.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18@674657 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -755,6 +755,8 @@ Release 0.17.1 - Unreleased
     HADOOP-3633. Correct exception handling in DataXceiveServer, and throttle
     the number of xceiver threads in a data-node. (shv)
 
+    HADOOP-3002. HDFS should not remove blocks while in safemode. (shv)
+
 Release 0.17.0 - 2008-05-18
 
   INCOMPATIBLE CHANGES