RFR: 8223016: ZGC: Fix misaligned statistics printout

[Thomas Schatzl]

Hi,

On Fri, 2019-04-26 at 10:18 +0200, Per Liden wrote:
> JDK-8221393 introduced a new ZStatSubPhase with long name, causing
> the avg/max columns in the statistics table to become misaligned.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8223016
> Webrev: http://cr.openjdk.java.net/~pliden/8223016/webrev.0
> 
> /Per

  looks good (and trivial) to me.

Thanks,
  Thomas