Commits
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925b65d updated reference to tests
Discussion
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updated reference to tests
this is basically the format used in all other components.
however i am not sure if it really makes sense to list ``phpunit -c src/Symfony/Component/HttpFoundation/``, since this relative path could be confusing for anyone using the standalone components. But even if using ``symfony/symfony`` the path is wrong relative to the location of the README.md.