RFR 8193779: Fix copyright header in nashorn builtin scripts

[Hannes Wallnöfer]

+1

Hannes

> Am 19.12.2017 um 11:38 schrieb Sundararajan Athijegannathan <sundararajan.athijegannathan at oracle.com>:
> 
> Please review.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8193799
> Webrev: http://cr.openjdk.java.net/~sundar/8193799/webrev.00/
> 
> Thanks,
> -Sundar
>