[PATCH] negrev: return empty for wdir() and nullrev

[Yuya Nishihara]

On Mon, 18 Feb 2019 23:48:00 -0500, Jordi Gutiérrez Hermoso wrote:
> # HG changeset patch
> # User Jordi Gutiérrez Hermoso <jordigh at octave.org>
> # Date 1550551420 18000
> #      Mon Feb 18 23:43:40 2019 -0500
> # Node ID 379d5bef7d3601d43c5d7d4c4c39d7014bc71208
> # Parent  37b33c34bf4f890857b5e8728febbc82a99368a5
> negrev: return empty for wdir() and nullrev

Queued, thanks.