return count Checkstyle rule/latest eclipse checkstyle plugin

[Tom Zeller]

>> you might want to avoid this update.

Confirming the issue with the latest Checkstyle plugin for Eclipse.

Since the complaint is about a return count of 2, I assume we need to
add maxForVoid[1,2], e.g. :

    <module name="ReturnCount">
      <property name="max" value="8"/>
      <property name="maxForVoid" value="8"/>
    </module>

But doing so does not help, at least for me. So ... I plan on changing
the parent-v3 POM to pin/lock the Checkstyle version, at least for
Maven[3], but that won't help Eclipse of course.

[1] http://checkstyle.sourceforge.net/config_coding.html#ReturnCount
[2] https://github.com/checkstyle/checkstyle/issues/3143
[3] https://issues.shibboleth.net/jira/browse/JPAR-77