Use actual Copyright symbol

Author: parrobe

LICENSE

@@ -175,7 +175,7 @@
 
    END OF TERMS AND CONDITIONS
 
-   (C) Copyright IBM Corp. 2016, 2018 All Rights Reserved.
+   © Copyright IBM Corp. 2016, 2018 All Rights Reserved.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.