update copyright

Author: CarolynRountree

core/src/main/antlr4/oracle/weblogic/deploy/yaml/Yaml.g4

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2020, Oracle Corporation and/or its affiliates.  All rights reserved.
+ * Copyright (c) 2017, 2020, Oracle Corporation and/or its affiliates.
  * The Universal Permissive License (UPL), Version 1.0
  */
 grammar Yaml;