Eliminate tab character from datastore package

Change-Id: I6eea92ce72268c4ca90f1bd24bdccf7edf4cbb7f
diff --git a/src/main/java/net/onrc/onos/datastore/RejectRulesException.java b/src/main/java/net/onrc/onos/datastore/RejectRulesException.java
index 0bd5072..1777ef6 100644
--- a/src/main/java/net/onrc/onos/datastore/RejectRulesException.java
+++ b/src/main/java/net/onrc/onos/datastore/RejectRulesException.java
@@ -11,14 +11,14 @@
     private static final long serialVersionUID = -1444683012320423530L;
 
     public RejectRulesException(final String message) {
-	super(message);
+        super(message);
     }
 
     public RejectRulesException(final String message, final Throwable cause) {
-	super(message, cause);
+        super(message, cause);
     }
 
     public RejectRulesException(final Throwable cause) {
-	super(cause);
+        super(cause);
     }
 }