bpo-37256: Wording in Request class docs (#14792)

* bpo-37256: Wording in Request class docs

* 📜🤖 Added by blurb_it.

* Update Misc/NEWS.d/next/Documentation/2019-07-16-14-48-12.bpo-37256.qJTrBb.rst
Co-Authored-By: Kyle Stanley <aeros167@gmail.com>

Doc/library/urllib.request.rst

@@ -227,7 +227,7 @@ The following classes are provided:
    is not None, ``Content-Type: application/x-www-form-urlencoded`` will
    be added as a default.
 
-   The final two arguments are only of interest for correct handling
+   The next two arguments are only of interest for correct handling
    of third-party HTTP cookies:
 
    *origin_req_host* should be the request-host of the origin

Misc/NEWS.d/next/Documentation/2019-07-16-14-48-12.bpo-37256.qJTrBb.rst

+Fix wording of arguments for :class:`Request` in :mod:`urllib.request`