Review Request JDK-8171468: sun/management/jmxremote/bootstrap/CustomLauncherTest.java fails as lib/$ARCH no longer exists

[Mandy Chung]

Webrev:
  http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8171468/webrev.00/

The test is updated to check the new location of shared libraries. lib/$ARCH 
has been removed.

Mandy