[PATCH] util: explicitly tests for None

[Yuya Nishihara]

On Thu, 16 Mar 2017 11:16:01 -0700, Pierre-Yves David wrote:
> # HG changeset patch
> # User Pierre-Yves David <pierre-yves.david at ens-lyon.org>
> # Date 1489615634 25200
> #      Wed Mar 15 15:07:14 2017 -0700
> # Node ID 4f99a4fb0482a44178f96c29678ef4630056ff4e
> # Parent  a5bad127128d8f60060be53d161acfa7a32a17d5
> # EXP-Topic mutable-default
> # Available At https://www.mercurial-scm.org/repo/users/marmoute/mercurial/
> #              hg pull https://www.mercurial-scm.org/repo/users/marmoute/mercurial/ -r 4f99a4fb0482
> util: explicitly tests for None

Queued, thanks.