Fix NOTICE copyright statement
diff --git a/NOTICE b/NOTICE
index 194805c..8d9c106 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache Twill
-Copyright [2013-2014] The Apache Software Foundation
+Copyright 2013-2014 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).