Allow returning std::strings with embedded null characters (why one would want to do this is beyond my understanding)

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@4337 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Lib/python/std_common.i

@@ -20,7 +20,7 @@ double SwigNumber_AsDouble(PyObject* o) {
                             : double(PyLong_AsLong(o)));
 }
 PyObject* SwigString_FromString(const std::string& s) {
-    return PyString_FromString(s.c_str());
+    return PyString_FromStringAndSize(s.data(),s.size());
 }
 std::string SwigString_AsString(PyObject* o) {
     return std::string(PyString_AsString(o));