Windows test fixes python#3, also fix docs lint

Author: barneygale

Doc/whatsnew/3.14.rst

@@ -461,7 +461,7 @@ urllib.request
   * On non-Windows platforms, :func:`~urllib.request.pathname2url` generates
     URIs that begin with three slashes (rather than one) when given an
     absolute path. :func:`~urllib.request.url2pathname` performs the opposite
-    transformation, so ``file:///etc/hosts` becomes ``/etc/hosts``.
+    transformation, so ``file:///etc/hosts`` becomes ``/etc/hosts``.
   * On non-Windows platforms, :func:`~urllib.request.url2pathname` raises
     :exc:`urllib.error.URLError` if the URI includes a non-local authority,
     like ``file://other-machine/etc/hosts``.

Lib/test/test_urllib.py

@@ -1534,7 +1534,7 @@ def test_pathname2url_win(self):
         # Long drive letter
         self.assertEqual(fn("XX:\\"), "XX%3A/")
         # No drive letter
-        self.assertEqual(fn("\\folder\\test\\"), '/folder/test/')
+        self.assertEqual(fn("\\folder\\test\\"), '///folder/test/')
         self.assertEqual(fn("\\\\folder\\test\\"), '//folder/test/')
         self.assertEqual(fn("\\\\\\folder\\test\\"), '///folder/test/')
         self.assertEqual(fn('\\\\some\\share\\'), '//some/share/')