[PATCH] sed: Add support for POSIX -E to select EREs (this is a synonym for -r)

[Denys Vlasenko]

On Mon, Oct 28, 2013 at 12:42 AM, David A. Wheeler
<dwheeler at dwheeler.com> wrote:
> From 4db84e2049570c3a9d23085add4b725e3cf45cc0 Mon Sep 17 00:00:00 2001
> From: David A. Wheeler <dwheeler at dwheeler.com>
> Date: Sun, 27 Oct 2013 19:42:46 -0400
> Subject: [PATCH] sed: Add support for POSIX -E to select EREs (this is a synonym for -r)
>
> POSIX has added a new sed option "-E" to sed to select
> extended regular expressions (EREs), as described here:
>   http://austingroupbugs.net/view.php?id=528
>
> Busybox already supported this using "-r", so this patch just adds "-E"
> as a synonym, documents "-E", and adds a trivial test to check it.
>
> Signed-off-by: David A. Wheeler <dwheeler at dwheeler.com>

Applied, thanks