Test::Harness is backwards compatible with 5.004 and must remain that
way. Because of this, you may seem some odd things being done.
- Because => doesn't quote properly in 5.004, you have to remember
to quote the LHS if its 'next' or 'ok' or 'skip', etc...
Test::Harness cannot have a dependency on any other testing module because
of a risk of a circular dependency. Therefore, we distribute Test::More
along with it.