At least one of the buildbots was complaining about newview being used

without being initialized.  Also make the code conform to the comment and
return the new object.  This code needs a test!

Objects/memoryobject.c

@@ -513,12 +513,11 @@ memory_subscript(PyMemoryViewObject *self, PyObject *key)
 		else {
 			/* Return a new memory-view object */
 			Py_buffer newview;
-			PyMemoryView_FromMemory(&newview);
+			memset(&newview, 0, sizeof(newview));
+			return PyMemoryView_FromMemory(&newview);
 		}
 	}
 
-
-
         Py_INCREF(Py_NotImplemented);
         return Py_NotImplemented;
 }