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bug#9259: extra line in "unless" docstring?

From: Chong Yidong
Subject: bug#9259: extra line in "unless" docstring?
Date: Sat, 20 Aug 2011 17:48:32 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

address@hidden writes:

> unless is a Lisp macro in `subr.el'.
> (unless COND BODY...)
> If COND yields nil, do BODY, else return nil. <--------what is this
> line doing here?
> When COND yields nil, eval BODY forms sequentially and return
> value of last one, or nil if there are none.

It's the one-line summary of the function.  Every docstring has one.

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