diary-mail-entries incorrect when no relevant appointments found

[Tim Hesterberg]

In GNU Emacs 20.5.1 (i386-redhat-linux-gnu, X toolkit)
 of Mon Feb 21 2000 on porky.devel.redhat.com
configured using `configure  --prefix=/usr --libexecdir=/usr/lib 
--sharedstatedir=/var --with-gcc --with-pop --with-x-toolkit 
i386-redhat-linux-gnu'

I'm using a version of diary-lib.el with these copyrights:
;; Copyright (C) 1989, 1990, 1992, 1993, 1994, 1995 Free Software
(I believe this came with emacs 20.5.1.)

-------------------------------------------------

Errors occur when I run diary-mail-entries,
either interactively or from .emacs,
and there are no diary entries in the relevant time frame (e.g. none in
the next week).

(1) If I have not previously run this command, it generates an error:
No buffer named *Fancy Diary Entries*

(2) If I previously ran diary-mail-entries in the same session,
so that a buffer *Fancy Diary Entries* exists, 
and now run it with a shorter time frame that contains no relevant entries
in the diary file,
then results are incorrect -- a mail message is generated with the old
results, not the new results (i.e. that there are not diary entries in the
relevant time frame).

One suggestion is to have whatever function creates the *Fancy Diary
Entries* buffer should always create it; if there are no relevant
entries then the buffer should have text that says that.

Thank you,
Tim Hesterberg