Improve Output Format for Failing Tests in Maxitest

[seuros]

When running Maxitest, the current output format for failing tests looks like this:

Focus on failing tests:
mtest test/controllers/interna_test.rb:41

It would be more helpful if the output included the full command to re-run the test, like so:

Focus on failing tests:
bin/rails test test/controllers/interna_test.rb:41

This would make it easier to quickly re-run failing tests without manually modifying the command.

[grosser]

mtest test/controllers/interna_test.rb:41 is supposed to work too, but is broken because of minitest/minitest-rails#256
... I guess we could add a "use bin/rails" if "bin/rails" exists check to circumvent that

[seuros]

the binstub is not needed.

We could just do a bundle exec rails test .... if Rails is detected.

My concern is that you have that part of code vendored with do no modify warning

[grosser]

should not be an issue, https://github.com/grosser/maxitest/blob/master/Rakefile#L16 this modifies the vendored code

[grosser]

#74 -> 5.8.0

[seuros]

Thanks