MAPREDUCE-7421. Fix CheckStyle.

Author: fanshilun

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestConcatenatedCompressedInput.java

@@ -690,7 +690,7 @@ private static String unquote(String in) {
    * @param args
    * @throws Exception
    */
-  /*public static void main(String[] args) throws Exception {
+  public static void main(String[] args) throws Exception {
     for(String arg: args) {
       System.out.println("Working on " + arg);
       LineReader reader = makeStream(unquote(arg));
@@ -702,5 +702,5 @@ private static String unquote(String in) {
       }
       reader.close();
     }
-  }*/
+  }
 }