RFR: JDK-8203927 - Update version string to identify which VM is being used

[jesper.wilhelmsson at oracle.com]

Hi,

Please review this change to make the version string to identify which JVM is being used in the presence of a hardened JVM. This change relates to JDK-8202384 which is currently out for review as well.

Testing: Local verification and tier 1.

Bug: https://bugs.openjdk.java.net/browse/JDK-8203927
Webrev: http://cr.openjdk.java.net/~jwilhelm/8203927/webrev.00/

Thanks,
/Jesper