Swap conflicts test, underscore versions broke it

For $VERSION's with an underscore in them, Module::Metadata may detect a
version that isn't quite identical to the one returned by
Module->VERSION. Since that's a realistic issue for Test::More but not
for Test::Deep, I've switched them around. This is still somewhat
fragile though.
v0.007

          Swap conflicts test, as underscore versions broke it
Document  in the right function