Repair python3 build under Homebrew Python 3.4 with OSX 10.9.

miniupnpc/.gitignore

@@ -8,6 +8,7 @@ build/
 Makefile.bak
 miniupnpcstrings.h
 pythonmodule
+pythonmodule3
 upnpc-shared
 upnpc-static
 minihttptestserver

miniupnpc/miniupnpcmodule.c

@@ -599,7 +599,7 @@ initminiupnpc(void)
     UPnPType.tp_new = PyType_GenericNew;
 #endif
     if (PyType_Ready(&UPnPType) < 0)
-        return;
+        return 0;
 
 #if PY_MAJOR_VERSION >= 3
     m = PyModule_Create(&moduledef);