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From: Per Abrahamsen <abraham@dina.kvl.dk>
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Subject: Re: Katsumi Yamaoka's CVS update of gnus/lisp (73 files)
Date: Fri, 22 Feb 2002 10:04:32 +0100
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I think it is ok to assume that tab-width is 8 for Gnus, that
assumption is everywhere in the Emacs code. 

On the other hand, I don't think it is worth saving a few bytes to
change existing spaces to tabs, when it doesn't affect indentation.
The price of potential merge conflicts is too high.  You can of course
safely convert spaces to tabs when you modify the code, since that
will lead to not additional conflicts.

On the gripping hand, Katsumi Yamaoka's should not be undone, as that
would just lead to even more conflicts.

In short: set tab-width to 8, and don't worry about space/tabs
otherwise.