Request for approval for 7127874: [macosx] Add handling of macosx env variables to ProcessBuilder regression test

[Jason Uh]

Requesting approval to push this fix to jdk7u-osx:

Change: http://cr.openjdk.java.net/~juh/7127874/webrev.01/

CR: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7127874

The fix has been reviewed by: michaelm

The changeset will be pushed for me by Michael McMahon (michaelm).

Thanks,
Jason