[9, 8u] Review request: 8159726: Cleanup whitespace and file permission in tests repo

[Kevin Rushforth]

Andrey,

Please review the following white-space-only change:
https://bugs.openjdk.java.net/browse/JDK-8159726
http://cr.openjdk.java.net/~kcr/8159726/webrev-9.01/

With this change the openjfx tests repo in both 8u and 9 will be jcheck 
compliant.

Thanks.

-- Kevin