Log Message:
Update to 2.161

Upstream changes:
2.161 (Jul 11 2016)

    Perl 5.12 fix/workaround until fixed PPPort release.

    Pre-5.12 fixes for test dependency.
2.160 (Jul 3 2016)

    Now handles huge inputs on 64bit perls.

    Add Trailingcomma option. This is as suggested in RT#126813.

    Significant refactoring of XS implementation.

    Pure Perl implementation fixes in corner cases ("\n" dumped raw").