Log Message:
devel/ruby-pathname2: update to 1.8.3

Update ruby-pathname2 package to 1.8.3.

== 1.8.3 - 30-Aug-2020

* Updated the tests to match the version. Thanks go to Cédric Boutillier for
  the spot.
* Fixed a redefinition warning for the :children method.
* Fixed a Fixnum deprecation warning.

== 1.8.2 - 21-Jul-2020

* Added a LICENSE file as required by the Apache-2.0 license.