RFR -Make NMT a bit friendlier to work with

[Nils Loodin]

I was trying out NMT a few days ago but couldn't get it to work until I realised I gave it the wrong option, and it swallowed it silently but didn't do anything.
I was trying to use -XX:NativeMemoryTracking=details instead of -XX:NativeMemoryTracking=detail because because of a typo in a pdf.

So I thought I'd change it to give an error when encountering an invalid option.
If you think it looks ok I'll open a bug and push the change.

You can find the change here:
http://cr.openjdk.java.net/~nloodin/NMTFriendly/webrev.01/

Regards,
Nils Loodin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/attachments/20120920/c5740216/attachment.html