Fix appveyor to use the new test command.

appveyor.yml

@@ -154,7 +154,7 @@ test_script:
   # Run the project tests
   - "%PYEXE% -c \"import gevent.core; print(gevent.core.loop)\""
   - "%PYEXE% -c \"import gevent; print(gevent.config.settings['resolver'].get_options())\""
-  - "cd src/greentest && %PYEXE% testrunner.py --config known_failures.py --quiet && cd ../.."
+  - "%PYEXE% -mgevent.tests --config known_failures.py --quiet"
 
 after_test:
   - "%CMD_IN_ENV% %PYEXE% setup.py bdist_wheel"

src/gevent/tests/test__pywsgi.py

@@ -751,7 +751,7 @@ class HttpsTestCase(TestCase):
         import ssl
         raw_sock = self.connect()
         sock = ssl.wrap_socket(raw_sock)
-        fd = sock.makefile(bufsize=1)
+        fd = sock.makefile(bufsize=1) # pylint:disable=unexpected-keyword-arg
         fd.write('%s / HTTP/1.1\r\nHost: localhost\r\n' % method)
         if post_body is not None:
             fd.write('Content-Length: %s\r\n\r\n' % len(post_body))