Do not use authorisation for repr if it is None

issue10642
review342871005
(grafted from c9801860af620cbfe413c158a6a8c33ae3fb3d69)

--HG--
branch : 6.0

trytond/protocols/wrappers.py

@@ -38,8 +38,11 @@ class Request(_Request):
             else:
                 url = self.url.decode(self.url_charset)
             auth = self.authorization
-            args.append("%s@%s" % (
-                    auth.get('userid', auth.username), self.remote_addr))
+            if auth:
+                args.append("%s@%s" % (
+                        auth.get('userid', auth.username), self.remote_addr))
+            else:
+                args.append(self.remote_addr)
             args.append("'%s'" % url)
             args.append("[%s]" % self.method)
             args.append("%s" % (self.rpc_method or ''))