Apply a minor consistency fix
Apply a minor consistency fix

Make sure `calculate_match` behaves the same as `recursive_match` in the
presence of `never_show_dot_files`.

wincent/command-t,mtimkovich/command-t,wincent/command-t,mtimkovich/command-t,yrro/command-t,wincent/command-t,yrro/command-t