RFR: 8146728: TestPrintGCDetailsVerbose is never run by jtreg

[Kim Barrett]

Please review this change to allow TestPrintGCDetailsVerbose to run.
Also updated the test's arguments for unified logging.

Note: This change depends on the in-review fix for JDK-8146793.

CR:
https://bugs.openjdk.java.net/browse/JDK-8146728

Webrev:
http://cr.openjdk.java.net/~kbarrett/8146728/webrev.00/

Testing:
JPRT
Locally verified test is run or not, based on build type, for all of
release (not run), fastdebug (run), and debug (run) builds.