Format tweak.

Author: Gary Gregory

src/main/java/org/apache/commons/io/filefilter/WildcardFilter.java

@@ -80,6 +80,7 @@
 public class WildcardFilter extends AbstractFileFilter implements Serializable {
 
     private static final long serialVersionUID = -5037645902506953517L;
+
     /** The wildcards that will be used to match file names. */
     private final String[] wildcards;