bug#31497: [Andrii Kolomoiets] bug#31497: 27.0.50; vc-hg doesn't separate standard error from standard output

[Lars Ingebrigtsen <larsi@gnus.org>]

(Please keep the debbugs address in the Cc list -- otherwise the bug
tracker won't get the message.)

>>> not trusting file /tmp/hg/.hg/hgrc from untrusted user root, group root 
>>> not trusting file /tmp/hg/.hg/hgrc from untrusted user root, group root
>>
>> filter out the "not trusting" lines, or is this just one of a
>> gazillion error messages that can be output here?
>
> Other errors also printed to stderr, so filtering out stderr completely
> can hide meaningful errors.
>
> This particular warning is also present in log and annotate buffers and
> completely messing up vc-dir buffer.
>
> There are option 'ui.report_untrusted' in hg since this commit:
> https://www.mercurial-scm.org/repo/hg/rev/97369f6a6bb6

So that's 2007, so it should presumably be safe to add that.

> It present in mercurial 2.6.2, the earliest version I found in pip.
>
> To filter out just "not trusting" warning I can propose to run hg like
> this:
> hg log --config ui.report_untrusted=0 -l 1 -r . -T '{rev}'

Could you propose a patch that adds this?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no