bug#24435: 25.1; Problem using Hunspell

[Eli Zaretskii <eliz@gnu.org>]

> From: Dmitri Paduchikh <dpaduchikh@gmail.com>
> Cc: npostavs@users.sourceforge.net,  24435@debbugs.gnu.org
> Date: Fri, 16 Sep 2016 01:59:58 +0500
> 
> > How did it happen that Hunspell was invoked without the -a switch,
> > though?  AFAICS, ispell-start-process hard-codes the -a switch, so it
> > should have been invoked with it.
> 
> With ispell-extra-args being empty, the eventual form to start Hunspell is
> 
> * make-process(:name "ispell" :buffer nil :command ("hunspell" "-a" ""
>   "-d" "ru_RU" "-i" "UTF-8"))
> 
> However right after evaluation of this form pgrep shows this:
> 
> $ pgrep -a hunspell
> 6310 /usr/bin/hunspell  -d ru_RU -i UTF-8
> $ tr \\0 \\n < /proc/6310/cmdline | cat -n
>      1	/usr/bin/hunspell
>      2	
>      3	-d
>      4	ru_RU
>      5	-i
>      6	UTF-8
> $ 

Does it mean hunspell is a shell script, which omits the -a when it
invokes the actual program?  How else to explain the fact that -a
disappears?