[PATCH] Test: fix draft test for emacs23

[David Bremner]

Mark Walters <markwalters1009 at gmail.com> writes:

> emacs24 and emacs23 have different secure tag defaults: in particular,
> mml-secure-message-sign only signs the part on emacs23 but the whole
> message on emacs24. This difference makes one of the draft tests fail
> (which causes a cascade of later failures) on emacs23. It seems that
> travis uses emacs23 so it is useful to fix this.
>
> We do this by forcing the whole message to be signed in either case --
> the code snippet is extracted from mml-secure-message-sign on emacs24.
> ---

Pushed to master

d