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bug#702: with-help-window returns nil

From: Lennart Borgman (gmail)
Subject: bug#702: with-help-window returns nil
Date: Tue, 12 Aug 2008 19:27:58 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20071031 Thunderbird/ Mnenhy/

Glenn Morris wrote:
Current CVS trunk:

with-help-window returns nil, rather than the last value of BODY.
This causes, eg, describe-function to return nil, rather than the
description. This breaks, eg, eshell/which:

emacs -Q -f eshell
eshell> which which
Wrong type argument: stringp, nil

I just reported this problem to the maintainer of eshell and suggested to fetch the documentation in another way.

It is not documented that describe-function should return the doc string.

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