Add an empty line at the end of the file

Author: ColinHebert

src/main/java/org/fluentd/logger/sender/ConstantDelayReconnector.java

@@ -50,5 +50,4 @@ public boolean enableReconnection(long timestamp) {
 
         return (!(timestamp - errorHistory.getLast() < wait));
     }
-
-}
+}