add missing part of the python 3.x patch

unbound-1.4.22-python3.patch

@@ -440,3 +440,43 @@ index 4f92799..313c748 100644
    }
    
   %pythoncode %{
+diff --git a/pythonmod/interface.i b/pythonmod/interface.i
+index 606d85f..4f1a25f 100644
+--- a/pythonmod/interface.i
++++ b/pythonmod/interface.i
+@@ -48,7 +48,7 @@
+      list = PyList_New(cnt);
+      i = 0; cnt = 0;
+      while (i < len) {
+-        PyList_SetItem(list, cnt, PyString_FromStringAndSize(name + i + 1, name[i]));
++        PyList_SetItem(list, cnt, PyBytes_FromStringAndSize(name + i + 1, name[i]));
+         i += name[i] + 1;
+         cnt++;
+      }
+@@ -148,7 +148,7 @@ struct query_info {
+    };
+ 
+    PyObject* _get_qname(struct query_info* q) {
+-      return PyString_FromStringAndSize((char*)q->qname, q->qname_len);
++      return PyBytes_FromStringAndSize((char*)q->qname, q->qname_len);
+    } 
+ 
+    PyObject* _get_qname_components(struct query_info* q) {
+@@ -210,7 +210,7 @@ uint16_t ntohs(uint16_t netshort);
+ 
+ %inline %{
+    PyObject* _get_dname(struct packed_rrset_key* k) {
+-      return PyString_FromStringAndSize((char*)k->dname, k->dname_len);
++      return PyBytes_FromStringAndSize((char*)k->dname, k->dname_len);
+    } 
+    PyObject* _get_dname_components(struct packed_rrset_key* k) {
+       return GetNameAsLabelList((char*)k->dname, k->dname_len);
+@@ -317,7 +317,7 @@ struct packed_rrset_data {
+    PyObject* _get_data_rr_data(struct packed_rrset_data* d, int idx) {
+      if ((d != NULL) && (idx >= 0) && 
+              ((size_t)idx < (d->count+d->rrsig_count))) 
+-        return PyString_FromStringAndSize((char*)d->rr_data[idx],
++        return PyBytes_FromStringAndSize((char*)d->rr_data[idx],
+                 d->rr_len[idx]);
+      return Py_None;
+    }