This is to hide the registry from net_conf.
Right now, it does not harm if "net conf" does not close
the registry file explicitly just before exiting.
I am working out a proper way of handling open/close
operations transparently in the libnet_conf library.
Michael
(This used to be commit
790ef789444945fbae5637f0b469665859171dcd)
ret = net_run_function2(argc, argv, "net conf", func);
ret = net_run_function2(argc, argv, "net conf", func);