HADOOP-19423. Fix CheckStyle Issue.

Author: slfan1989

hadoop-tools/hadoop-archives/src/test/java/org/apache/hadoop/tools/TestHadoopArchives.java

@@ -303,7 +303,7 @@ private static List<String> lsr(final FsShell shell, String rootDir,
     System.setErr(out);
     final String results;
     try {
-      assertEquals(0, shell.run(new String[] { "-lsr", dir }));
+      assertEquals(0, shell.run(new String[]{"-lsr", dir}));
       results = bytes.toString();
     } finally {
       IOUtils.closeStream(out);