bug#23779: 25.0.95; consing "SHELLVAR" onto process-environment doesn't remove it from subprocess env

[Dmitry Gutov]

On 06/17/2016 07:52 PM, Andreas Schwab wrote:
> Dmitry Gutov <dgutov@yandex.ru> writes:

> >           (or coding-system-for-read vc-git-log-output-coding-system))
> >         (coding-system-for-write
> >           (or coding-system-for-write vc-git-commits-coding-system))
> > -       (process-environment (cons "PAGER=" process-environment)))
> > +       (process-environment process-environment))
> > +    (setenv "PAGER")
> >      (apply 'process-file vc-git-program nil buffer nil command args)))
>
> Is that in any way different from git --no-pager?

The effect is likely the same. But that is beside the point: the example 
is not about PAGER but about setenv.