RFR (S): 8227179: Test for new gc+metaspace=info output format

[Tony Printezis]

Hi all,

This is a follow-up to:

8223575: add subspace transitions to gc+metaspace=info log lines

(that I just pushed) and adds a test to sanity check the gc+metaspace=info
output. Webrev here:

http://cr.openjdk.java.net/~tonyp/8227179/webrev.0/

Thanks,

Tony

—————
Tony Printezis | @TonyPrintezis | tprintezis at twitter.com