s4-pynet: accept None for target_dir in vampire

diff --git a/source4/libnet/py_net.c b/source4/libnet/py_net.c
index cdf8aebcb3f012ce42fa92b590ca2170c0857e80..0592b3f50357886bed1538bcd402d61b6f23fe22 100644 (file)
--- a/source4/libnet/py_net.c
+++ b/source4/libnet/py_net.c
@@ -277,7 +277,7 @@ static PyObject *py_net_vampire(py_net_Object *self, PyObject *args, PyObject *k
        PyObject *ret;
        struct libnet_Vampire r;
 
-       if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|s", discard_const_p(char *, kwnames),
+       if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|z", discard_const_p(char *, kwnames),
                                         &r.in.domain_name, &r.in.targetdir)) {
                return NULL;
        }