[10] Review request: 8190758: javapackager fails to consider filesystem type

[victor . drozdov]

Kevin,

Please review my changes about filesystem type for .dmg

JIRA:  https://bugs.openjdk.java.net/browse/JDK-8190758
Webrev:http://cr.openjdk.java.net/~vdrozdov/JDK-8190758/webrev.00/

--Victor