[PATCH 3 of 3] cext: mark constant variables

[Augie Fackler]

> On May 20, 2017, at 23:02, Yuya Nishihara <yuya at tcha.org> wrote:
> 
> # HG changeset patch
> # User Yuya Nishihara <yuya at tcha.org>
> # Date 1495341661 -32400
> #      Sun May 21 13:41:01 2017 +0900
> # Node ID 14b1f1bafb4ae220dd791680f8f2ea179f5200f7
> # Parent  ab99b86d9016ba51467e7f2359fc21a751f4f82d
> cext: mark constant variables

queued, thanks