bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: 36279@debbugs.gnu.org,  mail@xuchunyang.me,  npostavs@gmail.com
> Date: Wed, 19 Jun 2019 09:06:53 +0200
> 
>     >>> list_system_processes (on macOS and FreeBSD) and
>     >>> system_process_attributes(on FreeBSD) potentially have similar issues
>     >>> with sysctl. Would you like a defensive patch for those?
> 
>     Eli> Yes, I think so.
> 
>     Robert> OK, sometime tomorrow (and perhaps for 'get_boot_time' in 
> filelock.c
>     Robert> as well)
> 
> I think I got all the ChangeLog syntax right. Patch against emacs-26
> attached, not yet pushed.

LGTM, thanks.