[11] Review request: 8201563: Update copyright header for files modified in 2018

[Kevin Rushforth]

Please review the following to update the date in the copyright header 
(JDK-8201563) and also fix a garbled copyright header (JDK-8202357).

https://bugs.openjdk.java.net/browse/JDK-8201563
https://bugs.openjdk.java.net/browse/JDK-8202357
http://cr.openjdk.java.net/~kcr/8201563/webrev/
-- Kevin