Date: Mon, 6 Jan 2003 13:38:38 -0500
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From: DJ Delorie <dj AT delorie DOT com>
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In-reply-to: <3E19BA39.65EB1511@phekda.freeserve.co.uk> (message from Richard
	Dawe on Mon, 06 Jan 2003 17:17:45 +0000)
Subject: Re: diff format (was: Re: your mail)
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diff defaults to the "old style" diffs, using < and >

Context diffs use + and - with before and after code shown separately.

Unified diffs use + and - with the changed lines shown together in one
code chunk

Personally, I prefer context diffs.  I find unified diffs difficult to
read when I'm trying to picture the overall change, since I can't
picture the before and after code easily, especially when there's
multiple changed lines in each chunk.  If you're making a one line
change, or effectively one line per chunk, unified diffs are better.
When you change multiple lines in one spot, context diffs are better.