RFR(XXS): 8000358: G1: metaspace information not printed in PrintHeapAtGC output nor in hs_err file

[John Cuthbertson]

Hi Everyone,

A quickie - webrev can be found at: 
http://cr.openjdk.java.net/~johnc/8000358/webrev.0/

Summary:
A missing call to MetaspaceAux::print_on() in 
G1CollectedHeap::print_on(). Many thanks to Mikael Gerdin for noticing 
and diagnosing the issue, and suggesting the fix.

Testing:
gcbasher with +PrintHeapAtGC for a few GCs and then issuing a kill -11.

Thanks,

JohnC