Initial implementation of distributed intent batch queue

Change-Id: I7ffed03651569ade1be1e8dca905bfaf369b7e03
diff --git a/core/api/src/main/java/org/onlab/onos/store/service/Lock.java b/core/api/src/main/java/org/onlab/onos/store/service/Lock.java
index 01682d1..7558ae2 100644
--- a/core/api/src/main/java/org/onlab/onos/store/service/Lock.java
+++ b/core/api/src/main/java/org/onlab/onos/store/service/Lock.java
@@ -82,7 +82,7 @@
      * lock acquisition events
      * @return epoch
      */
-     long epoch();
+    long epoch();
 
     /**
      * Releases the lock.