bug#699: grep in eshell incorrect

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: 699@emacsbugs.donarmstrong.com,  xah lee <xah@xahlee.org>
> Date: Tue, 12 Aug 2008 15:59:05 -0400
> 
> info ls
> 
> If standard output is a terminal, the output is in columns (sorted
> vertically) and control characters are output as question marks;
> otherwise, the output is listed one per line and control characters
>                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Not with "ls -x".