bug#6674: PATCH: fix assignment of grep-find-use-xargs on Windows/MS-DOS

[Eli Zaretskii]

> From: Óscar Fuentes <ofv@wanadoo.es>
> Cc: lekktu@gmail.com,  6674@debbugs.gnu.org
> Date: Tue, 20 Jul 2010 21:51:39 +0200
> 
> The issue is that "cmd.exe -c" seems to have a 1024 char limit when the
> command contains a pipe (my guess is that the limit applies separatelly
> to every command on the pipe chain) and cmdproxy.c prepends "cmd.exe -c"
> to the command when it has a pipe, redirection, etc.

If that is true, we could implement the pipes in cmdproxy.  It's not
difficult.