Update ImportError definition for ComplexExtendsEx

Author: dr-carlos

Objects/exceptions.c

@@ -1949,7 +1949,7 @@ static PyMethodDef ImportError_methods[] = {
 ComplexExtendsException(PyExc_Exception, ImportError,
                         ImportError, 0 /* new */,
                         ImportError_methods, ImportError_members,
-                        0 /* getset */, ImportError_str,
+                        0 /* getset */, ImportError_str, 0,
                         "Import can't find module, or can't find name in "
                         "module.");