url: *args argument is a tuple, not a list (found by pylint)

E1101:514:httpshandler._makeconnection: Instance of 'tuple' has no 'pop' member
E1101:516:httpshandler._makeconnection: Instance of 'tuple' has no 'pop' member

mercurial/url.py

@@ -510,10 +510,11 b' if has_https:'
             keyfile = None
             certfile = None
 
-            if args: # key_file
-                keyfile = args.pop(0)
-            if args: # cert_file
-                certfile = args.pop(0)
+            if len(args) >= 1: # key_file
+                keyfile = args[0]
+            if len(args) >= 2: # cert_file
+                certfile = args[1]
+            args = args[2:]
 
             # if the user has specified different key/cert files in
             # hgrc, we prefer these