merge from 3.4

Fix issue22245 - Fix urllib2_localnet test.

Do not aggresively close wfile in the do_GET method in the BasicAuthHandler.

Lib/test/test_urllib2_localnet.py

@@ -238,7 +238,6 @@ class BasicAuthHandler(http.server.BaseHTTPRequestHandler):
         else:
             # Request Unauthorized
             self.do_AUTHHEAD()
-        self.wfile.close()