bug#17560: 24.4.50; wrong type argument if rmail-delete-after-output set

[Eli Zaretskii]

> From: Ken Olum <kdo@cosmos.phy.tufts.edu>
> Cc: 17560@debbugs.gnu.org
> Date: Fri, 23 May 2014 14:48:25 -0400
> 
> OK.  Here is a patch, including NEWS and ChangeLog entries.  I made the
> argument to rmail-delete-forward not optional, and fixed callers.

Thanks.

But on second thought, what exactly was wrong with making nil mean 1?
What did you mean by "not consistent with rmail-next-message"?

Sorry for not asking that earlier.