fix checkstyle

Author: xiezhineng

hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml

@@ -4555,7 +4555,7 @@
     the striped read process, the default is 1.
   </description>
 </property>
-  
+
 <property>
   <name>dfs.client.replica.accessor.builder.classes</name>
   <value></value>

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedInputStreamWithTimeout.java

@@ -174,9 +174,7 @@ private  void testReadFileWithAttempt(int attempt) throws Exception {
       int nread = in.read(buf, 0, bufLen);
       // Simulated time-consuming processing operations, such as UDF.
       // And datanodes close connect because of socket timeout.
-      cluster.dataNodes.forEach(dn -> {
-          dn.getDatanode().closeDataXceiverServer();
-      });
+      cluster.dataNodes.forEach(dn -> dn.getDatanode().closeDataXceiverServer());
       in.seek(nread);
       // StripeRange 6MB
       bufLen = 1024 * 1024 * 6;