RFR(XS): JDK-8146751: jdk/test/tools/launcher/TooSmallStackSize.java failed on Mac OS

[Frederic Parain]

Please review this small fix:

CR:
https://bugs.openjdk.java.net/browse/JDK-8146751

Webrev:
http://cr.openjdk.java.net/~fparain/8146751/webrev.00/

The changeset for JDK-8139864 introduced a bug for the
BSD and the Solaris platforms: missing parentheses cause
the VM to compute a wrong minimal value for stack size.

Fix has been tested manually (see CR).

Thanks,

Fred

-- 
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: Frederic.Parain at oracle.com