[1.9.x] Fixed typo in docs/topics/testing/tools.txt

    .. method:: Client.delete(path, data='', content_type='application/octet-stream', follow=False, secure=False, **extra)

        Makes an DELETE request on the provided ``path`` and returns a

        Makes a DELETE request on the provided ``path`` and returns a

        ``Response`` object. Useful for testing RESTful interfaces.

        When ``data`` is provided, it is used as the request body, and