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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: emacs-25 10597c9: Don't use 'find-program'
Date: Sat, 16 Apr 2016 21:57:26 +0300
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To: Glenn Morris <rgm@gnu.org>
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> From: Glenn Morris <rgm@gnu.org>
> Cc: emacs-devel@gnu.org
> Date: Sat, 16 Apr 2016 13:40:53 -0400
> 
> Eli Zaretskii wrote:
> 
> > wrong for them to use the same defcustom as used in grep.el and
> > related commands.  I think they should be changed to use a separate
> > defcustom (which could be called find-program ;-).
> 
> This doesn't make sense to me. Why do you think the "find" in "grep+find"
> might need to be different to "find" in any other usage?

Because it serves a different purpose, and is required to do different
things.