[PATCH evolve-ext] prune: reuse revset from repair instead of copy-pasting code

[Pierre-Yves David]

On 10/12/2015 11:34 PM, Ryan McElroy wrote:
> # HG changeset patch
> # User Ryan McElroy <rmcelroy at fb.com>
> # Date 1444432890 25200
> #      Fri Oct 09 16:21:30 2015 -0700
> # Branch stable
> # Node ID b2c9405678f70f2d09e773dbc35ad77d96a4dcb9
> # Parent  91b6a30424a366e87771fc2544c95633f4abfe81
> prune: reuse revset from repair instead of copy-pasting code

Pushed to main thanks.

I've kept the old code for old Mercurial version.

-- 
Pierre-Yves David