HDFS-7448 TestBookKeeperHACheckpoints fails in trunk -move CHANGES.TXT entry

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -257,9 +257,6 @@ Trunk (Unreleased)
 
     HDFS-7407. Minor typo in privileged pid/out/log names (aw)
 
-    HDFS-7448 TestBookKeeperHACheckpoints fails in trunk build
-    (Akira Ajisaka via stevel)
-
 Release 2.7.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES
@@ -522,6 +519,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-7444. convertToBlockUnderConstruction should preserve BlockCollection.
     (wheat9)
 
+    HDFS-7448 TestBookKeeperHACheckpoints fails in trunk build
+    (Akira Ajisaka via stevel)
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES