HADOOP-2552. Enable HDFS permission checking by default.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@610602 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -60,8 +60,7 @@ Trunk (unreleased changes)
 
     HADOOP-2336. Shell commands to modify file permissions. (rangadi)
 
-    HADOOP-1298. Implement file permissions for HDFS, disabled by
-    default.  Enable with dfs.permissions=true.
+    HADOOP-1298. Implement file permissions for HDFS.
     (Tsz Wo (Nicholas) & taton via cutting)
 
     HADOOP-2447. HDFS can be configured to limit the total number of 

conf/hadoop-default.xml

@@ -281,7 +281,7 @@ creations/deletions), or "all".</description>
 
 <property>
   <name>dfs.permissions</name>
-  <value>false</value>
+  <value>true</value>
   <description>
     If "true", enable permission checking in HDFS.
     If "false", permission checking is turned off,