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Re: diff: suboptimal behaviour with errors


From: Paul Eggert
Subject: Re: diff: suboptimal behaviour with errors
Date: Sat, 27 Mar 2004 20:53:15 -0800
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux)

Thomas Schwinge <address@hidden> writes:

> Which programs did you find?

Sorry, I don't know.  They are not portable programs since all POSIX
says is that the exit status is greater than 1 on failure.  But I
suspect there are some.

> The change would be announced for the next stable version

Hardly anybody pays attentions to such announcements, unfortunately.

> use that option to return '1' for non-displayable differences?

We already have an option that does that: --brief.

This is starting to sound more and more complicated, a complexity that
doesn't yield much benefit.  Let's not have an option: let's just
yield some other small number (i.e., 3) for the kind of failure that
you don't think should be a failure.




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