Update ruby-minitest to 5.13.0.
=== 5.13.0 / 2019-10-29
* 9 minor enhancements:
* Added Minitest::Guard#osx?
* Added examples to documentation for assert_raises. (lxxxvi)
* Added expectations #path_must_exist and #path_wont_exist. Not thrilled with the names.
* Added fail_after(year, month, day, msg) to allow time-bombing after a deadline.
* Added skip_until(year, month, day, msg) to allow deferring until a deadline.
* Deprecated Minitest::Guard#maglev?
* Deprecated Minitest::Guard#rubinius?
* Finally added assert_path_exists and refute_path_exists. (deivid-rodriguez)
* Refactored and pulled Assertions#things_to_diff out of #diff. (BurdetteLamar)
* 3 bug fixes:
* Fix autorun bug that affects fork exit status in tests. (dylanahsmith/jhawthorn)
* Improved documentation for _/value/expect, especially for blocks. (svoop)
* Support new Proc#to_s format. (ko1)
=== 5.12.2 / 2019-09-28
* 1 bug fix:
* After chatting w/ @y-yagi and others, decided to lower support to include ruby 2.2.
=== 5.12.1 / 2019-09-28
* 1 minor enhancement:
* Added documentation for Reporter classes. (sshaw)
* 3 bug fixes:
* Avoid using 'match?' to support older ruby versions. (y-yagi)
* Fixed broken link to reference on goodness-of-fit testing. (havenwood)
* Update requirements in readme and Rakefile/hoe spec.
=== 5.12.0 / 2019-09-22
* 8 minor enhancements:
* Added a descriptive error if assert_output or assert_raises called without a block. (okuramasafumi)
* Changed mu_pp_for_diff to make having both \n and \\n easier to debug.
* Deprecated $N for specifying number of parallel test runners. Use MT_CPU.
* Deprecated use of global expectations. To be removed from MT6.
* Extended Assertions#mu_pp to encoding validity output for strings to improve diffs.
* Extended Assertions#mu_pp to output encoding and validity if invalid to improve diffs.
* Extended Assertions#mu_pp_for_diff to make escaped newlines more obvious in diffs.
* Fail gracefully when expectation used outside of `it`.
* 3 bug fixes:
* Check `option[:filter]` klass before match. Fixes 2.6 warning. (y-yagi)
* Fixed Assertions#diff from recalculating if set to nil
* Fixed spec section of readme to not use deprecated global expectations. (CheezItMan)
c22e63eba0