Re: docstring: mail-signature

[Eli Zaretskii]

> From: "T.V Raman" <raman@google.com>
> Date: Sat, 2 Sep 2023 18:58:09 -0700
> 
> from sendmail.el:
> Note that the docstring says mail-signature determines what happens,
> but also says that the .signature file is used if this var is t or
> nil.
> 
> Shouldn't the sign not happen if that var is nil?
> The code actually checks for (memq t nil)

Yes, it seems to be a bug (because the doc string of the user option
mail-signature says nil means no signature is inserted, even if
mail-signature-file exists and is readable.  But it's a very old bug,
and the code installed 14 years ago by Glenn (CC'ed) explicitly
handles nil and t the same, not sure why.

Glenn, any comments?