Subject: Re: grep fails with "Can't exec program"

From: Chong Yidong <[email-masked]>
Date: Sat, 20 Dec 2008 02:32:07 -0500

> I grepped through a large list of files and intermittently
> got an error "Can't exec program" instead of matches.

Please provide an exact recipe for reproducing this bug, starting with
`emacs -Q'.  Thanks.