RFR (S): 8149112: configure_stdout test depends on VM arguments

[Marcus Larsson]

Hi,

Please review the following patch to make the configure_stdout 
internalvmtest independent on VM arguments for UL. Without this fix the 
test fails if run while logging to a file (-Xlog::somefile).

Webrev:
http://cr.openjdk.java.net/~mlarsson/8149112/webrev.00/

Issue:
https://bugs.openjdk.java.net/browse/JDK-8149112

Testing:
JPRT

Thanks,
Marcus