Log Message:
Update to 1.16

Upstream changes:
1.16 2021-01-2 Todd Rinaldo <toddr@cpan.org>
    * Switch to github for issue tracker.
    * Switch to testsuite CI workflow.
    * Tidy

2020-10-03 Todd Rinaldo <toddr@cpan.org> 1.15
    * Skip winsize test on Solaris and QNX NTO
    * Make function tests more robust
    * Work around a header name collission on util.h. This is breaking on recent OSX