Trivial patch for G1PrintRegionLivenessInfo

[Tony Printezis]

Peter,

Thanks for this. In all honesty, we haven't used the 
-XX:+G1PrintRegionLivenessInfo parameter for some time, so I don't think 
it's really worth extending at this point.

Tony

Peter Schuller wrote:
> I'd like to suggest the attached patch, which generates, at the end of
> the region liveness print-out, one line like:
>
>   Overall (among printed): 932052992 used, 441737152 max live, 47.39%.
>
> I haven't signed/sent in the contributor agreement and I didn't file a
> bugzilla bug; it seemed like unnecessary overhead (for others, not me)
> for trivial stuff like this. Should I?
>
>