Log Message:
Update to 0.109

Upstream changes:
0.109     2021-03-16 19:55:45-04:00 America/New_York
        - eliminate warnings-count failure by requiring an ExtUtils::MakeMaker
          from late 2013 or later;  without this, very old EUMM could pass -w
          to the tests, enabling more warnings than we wanted (thanks, Matthew
          Horsfall and Graham Knop!)

0.108     2021-03-16 09:54:51-04:00 America/New_York
        - provide diagnostics in tests when more warnings arrive than are
          expected

0.107     2021-03-14 16:15:57-04:00 America/New_York
        - Term::ReadKey has been dropped; caused too many problems
        - minimum version is now v5.10.1, not v5.10.0

0.106     2021-03-12 21:29:54-05:00 America/New_York
        - improved formatting of switches
        - when available, use Term::ReadKey to get terminal width
        - when an option name is defined twice, warn about it
          THIS WILL BECOME FATAL IN A FUTURE VERSION