Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/floodlightcontroller/threadpool/IThreadPoolService.java b/src/main/java/net/floodlightcontroller/threadpool/IThreadPoolService.java
index a537a3a..f9460cb 100644
--- a/src/main/java/net/floodlightcontroller/threadpool/IThreadPoolService.java
+++ b/src/main/java/net/floodlightcontroller/threadpool/IThreadPoolService.java
@@ -9,6 +9,7 @@
      * Get the master scheduled thread pool executor maintained by the
      * ThreadPool provider.  This can be used by other modules as a centralized
      * way to schedule tasks.
+     *
      * @return
      */
     public ScheduledExecutorService getScheduledExecutor();