Fix a couple of warnings

Modules/cjkcodecs/cjkcodecs.h

@@ -266,7 +266,7 @@ getcodec(PyObject *self, PyObject *encoding)
 				"encoding name must be a string.");
 		return NULL;
 	}
-	enc = PyUnicode_AsString(encoding, NULL);
+	enc = PyUnicode_AsString(encoding);
 	if (enc == NULL)
 		return NULL;
 

Python/import.c

@@ -2366,7 +2366,7 @@ PyImport_ReloadModule(PyObject *m)
 				"reload() argument must be module");
 		return NULL;
 	}
-	name = PyModule_GetName(m);
+	name = (char*)PyModule_GetName(m);
 	if (name == NULL)
 		return NULL;
 	if (m != PyDict_GetItemString(modules, name)) {