Travis failed using PHPUnit as the latest (3.8.*@dev)

Travis failed using PHPUnit sebastianbergmann/phpunit@052a1ccf7152c94a585f9399badcc9c0c507f8b3 as the latest now

The last succeed build is 4 manths ago

*(In expectation, PHPUnit (or [depends packages](https://github.com/sebastianbergmann/phpunit/blob/052a1ccf7152c94a585f9399badcc9c0c507f8b3/composer.json)) has changed codes,
but is behavior of this project's codes not follow yet ?)*

### More detail

* [PHPUnit compare 1d99e38..052a1cc](https://github.com/sebastianbergmann/phpunit/compare/1d99e38...052a1cc) between succeed build and failed build 
* [The detail of Travis failed #12](https://travis-ci.org/whatthejeff/nyancat-phpunit-resultprinter/builds/12872007)
* [The detail of Travis succeed at the previous #11](https://travis-ci.org/whatthejeff/nyancat-phpunit-resultprinter/builds/7835187)
* The discovered issue [#3 Fix namespace typo 'PHPunit' to 'PHPUnit'](https://github.com/whatthejeff/nyancat-phpunit-resultprinter/pull/3)