Log Message:
Update to 4.161950

Upstream changes:
4.161950 2016-07-12
  - This release fixes a critical bug in the list_dir() method, detailed at
    https://rt.cpan.org/Public/Bug/Display.html?id=115511
  - Regression test added to catch the failure condition
  - NOTE: No major code or featureset changes included as part of this release,
    therefore it is still deemed "stable", as no significant changes \ 
to the code
    have been made beyond a two line bugfix that remedies the problem that
    caused the list_dir() method to fail under certain conditions.