return count Checkstyle rule/latest eclipse checkstyle plugin

Tue Jul 12 15:48:03 EDT 2016

> I misspoke, indeed we do need "maxForVoid" for Checkstyle 6.19+. Looks
> like 6.18 does not complain about "maxForVoid" if it is present in
> checkstyle.xml.
> 
> https://issues.shibboleth.net/jira/browse/JPAR-90

Looks like I was wrong again, Eclipse Checkstyle Plugin version 6.16 does indeed break if we add “maxForVoid”, 6.18 possibly does too. So, we should probably (1) update checkstyle.xml everywhere and (2) bump checkstyle.version in the parent-v3 POM to 6.19 and then (3) each update our Eclipse plugins. Not a big deal, but I added this as an agenda item to the Friday dev call for coordination.