Jhsdb jmap --heap print large value of MaxMetaspaceSize

[linzang(臧琳)]

Dear All, 
     I found jhsdb jmap —heap print the value of uint_max (17592186044415 MB) when MaxMetaspaceSize is not set by user. This number confused me a little.
     And I also found the jcmd VM.metaspace prints “unimited” if MaxMetaspaceSize is not set. Which seems more reasonable.
     So Do you think it is OK if I make "jhsdb jmap" print the same “unlimited” value as jcmd does for MaxMetaspaceSize? 

BRs,
Lin