bug#12911: 24.3.50; let users decide where (& perhaps whether) `emacs_backtrace.txt' files are written

[Paul Eggert]

On 11/18/2012 09:16 AM, Eli Zaretskii wrote:
> The issue here is not _whether_ to redirect stderr,
> but rather _where_to_ to redirect it.

On GNU and Unix hosts, there's no issue.
stderr should not be redirected.  It never has
been redirected, and there's no reason to change.

> ... putting that file in ~/.emacs.d/ (also in the home a
> directory, so maybe you will still protest) is slightly better.
> But if Emacs should do that, it should do it on all the supported
> platforms.

There's no reason for Emacs to change its behavior
on GNUish hosts.  People on these hosts are used to
the current behavior with stderr.  Any problems
in this area are limited to Microsoft platforms, and
can be solved in a Microsoft-specific way.