Bug#377600: please support -R to reverse diff (fwd)

[Santiago Vila]

Hello.

I received this from the debian bug system:

---------- Forwarded message ----------
From: martin f krafft <address@hidden>
To: Debian Bug Tracking System <address@hidden>
Date: Mon, 10 Jul 2006 12:00:52 +0200
Subject: Bug#377600: please support -R to reverse diff

Package: diff
Version: 2.8.1-11
Severity: wishlist
File: /usr/bin/diff

cp debian/rules{,.orig}
diff debian/rules*

--> this will always generate a reverse diff, so to speak, since the
null string sorts before .orig. If diff could get a -R option to
just output the reverse of what it mean to output, that would be
great.

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