Reduce boilerplate for optional dep testing
Since this test is a planless variety, we don't need to provide a skip count

If we were to provide a count, it should be 4 since ->test_input expands
to 4 tests.
Account for Woothee version 1.0.0's os_version field

This manifested in CPAN Testers failures, such as the following:
http://www.cpantesters.org/cpan/report/7394fe8c-5d65-11e4-ac7c-ffd1dfbfc7aa