bug#31552: 27.0.50; Document that Emacs in batch mode exits with exit status -1 on error

[Lars Ingebrigtsen]

Philipp Stephani <p.stephani2@gmail.com> writes:

> Eli Zaretskii <eliz@gnu.org> schrieb am Di., 22. Mai 2018 um 19:17 Uhr:
>
>  > From: Philipp <p.stephani2@gmail.com>
>  > Date: Tue, 22 May 2018 15:41:25 +0200
>  > 
>  > I haven't found any documentation in the Lisp reference manual that the
>  > exit status of an Emacs process exiting due to a nonlocal exit is -1 by
>  > default (adjusted to 255 by Bash).  This should be documented, for users
>  > that run Emacs in batch mode.
>
>  I'm not sure I understand what you are describing.  Can you show a
>  reproducer?
>
> $ src/emacs -Q -batch -eval '(error "foo")' ; echo $?
>
> foo
>
> 255 

I've now added something like this to the Emacs 27 manual.

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