Fixed JIRA number for HDFS-1212. Harmonize HDFS JAR library versions with Common.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hdfs/trunk@959506 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -1004,10 +1004,10 @@ Release 0.21.0 - Unreleased
 
     HDFS-1256. libhdfs is missing from the tarball. (tomwhite)
 
-    HDFS_1057. Concurrent readers hit ChecksumExceptions if following a
+    HDFS-1057. Concurrent readers hit ChecksumExceptions if following a
     writer to very end of file. (sam rash via hairong)
 
-    HADOOP-1212. Harmonize HDFS JAR library versions with Common. (tomwhite)
+    HDFS-1212. Harmonize HDFS JAR library versions with Common. (tomwhite)
 
 Release 0.20.3 - Unreleased