RFR 8187934: dropping a shebang script in src/sample/nashorn directory results in test failure

[Sundararajan Athijegannathan]

Please review.

Bug: https://bugs.openjdk.java.net/browse/JDK-8187934
Webrev: http://cr.openjdk.java.net/~sundar/8187934/webrev.00/

PS. Piggybacking a sample script (psgrep.js)

Thanks,
-Sundar