Fix error: expected expression before '/' token

Index: miniupnpcmodule.c
--- miniupnpcmodule.c.orig
+++ miniupnpcmodule.c
@@ -323,9 +323,9 @@ Py_END_ALLOW_THREADS
 	}
 	else
 	{
-		// TODO: RAISE an Exception. See upnpcommands.h for errors codes.
-		// upnperrors.c
-		//Py_RETURN_FALSE;
+		/* TODO: RAISE an Exception. See upnpcommands.h for errors codes. */
+		/* upnperrors.c */
+		/* Py_RETURN_FALSE; */
 		/* TODO: have our own exception type ! */
 		PyErr_SetString(PyExc_Exception, strupnperror(r));
 		return NULL;