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Date: Tue, 6 Mar 2007 23:45:29 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: bryan.wu@analog.com
Cc: Jean Delvare <khali@linux-fr.org>, Alexey Dobriyan <adobriyan@gmail.com>,
       Sonic Zhang <sonic.adi@gmail.com>,
       Mike Frysinger <vapier.adi@gmail.com>, linux-kernel@vger.kernel.org,
       mhfan@ustc.edu
Subject: Re: [PATCH -mm] Blackfin: blackfin i2c driver
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On Wed, 07 Mar 2007 15:39:27 +0800 "Wu, Bryan" <bryan.wu@analog.com> wrote:

> Thanks a lot, could you please give me a script just to kill this
> whitespace? So I can do it before sending you patches.


Is pretty simple:

#!/bin/sh
#
# Strip any trailing whitespace which a unified diff adds.
#

strip1()
{
	TMP=$(mktemp /tmp/XXXXXX)
	cp $1 $TMP
	sed -e '/^+/s/[ 	]*$//' < $TMP > $1
	rm $TMP
}

for i in $*
do
	strip1 $i
done


that'll be in
http://www.zip.com.au/~akpm/linux/patches/patch-scripts-0.20/patch-scripts-0.20.tar.gz
too