bug#17308: 24.4.50; Emacs manual: mail signature variables and command

[Eli Zaretskii]

> From: simenheg@ifi.uio.no (Simen Heggestøyl)
> Date: Mon, 21 Apr 2014 19:24:41 +0200
> 
> 
> Section "32.5 Mail Signature" in the current Emacs manual is
> confusing. It describes the variables ‘mail-signature’ and
> ‘mail-signature-file’, while the presented command,
> ‘message-insert-signature’, actually uses the variables
> ‘message-signature’ and ‘message-signature-file’ instead.
> 
> ‘message-insert-signature’ is also the command that is run when ‘C-c
> C-w’ is typed in the mail buffer.

Fixed for Emacs 24.4 (revision 117022 on the emacs-24 branch).

Thanks.