[PATCH] tests: actually restore the original environment before running syshg

[Augie Fackler]

On Fri, Jun 30, 2017 at 11:08:27AM -0700, Adam Simpkins wrote:
> On Jun 30, Yuya Nishihara wrote:
> > # HG changeset patch
> > # User Yuya Nishihara <yuya at tcha.org>
> > # Date 1498826969 -32400
> > #      Fri Jun 30 21:49:29 2017 +0900
> > # Node ID fe3419b41a456661a3d35ae963d06a203d4446a2
> > # Parent  40ee74bfa11122a0a3ab74186f5056243b84af89
> > tests: actually restore the original environment before running syshg
> >
> > Since os.environ may be overridden in run-tests.py, several important
> > variables such as PATH weren't restored.
> >
> > I don't like the idea of using the system hg *by default* because the
> > executable and the configs are out of our control. But I don't mind as
> > long as the tests pass.
>
> Thanks for helping track down and fix the issue!  This diff looks good
> to me.


Queued, thanks

>
> --
> Adam Simpkins
> simpkins at fb.com
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