Solve checkstyle issue

src/main/java/be/cylab/java/wowa/training/Example.java

@@ -49,7 +49,8 @@ public final class Example {
         }
 
         String data_file = "./ressources/webshell_data_new_version.json";
-        String expected_file = "./ressources/webshell_expected_new_version.json";
+        String expected_file
+                = "./ressources/webshell_expected_new_version.json";
         Logger logger = Logger.getLogger(Trainer.class.getName());
         logger.setLevel(Level.INFO);
         StreamHandler handler = new StreamHandler(System.out,

src/main/java/be/cylab/java/wowa/training/MainTest.java

@@ -63,7 +63,7 @@ public final class MainTest {
 
         long start_time = System.currentTimeMillis();
         System.out.println("Wowa training");
-        HashMap<AbstractSolution, Double> map_wt = trainer.runKFold(folds, 10);
+        HashMap<AbstractSolution, Double> map_wt = trainer.runKFold(folds, 2);
         long end_time = System.currentTimeMillis();
         System.out.println("Execution time : " + (end_time - start_time) / 1000
                 + " seconds");