RFR: 8156537: Tools using MonitoredVmUtil do not parse module in cmdline correctly

[Robbin Ehn]

Hi all,

There were some ripple effects, so to get everything working as intended the patch grow slightly.

Webrev: http://cr.openjdk.java.net/~rehn/8156537/01/webrev/
Bug: https://bugs.openjdk.java.net/browse/JDK-8156537

Both a lot of manual testing, the new tests and jdk/test/sun/tools/,jdk/test/tools/ and some other which uses e.g. jcmd.

Thanks!

/Robbin