bug#16011: [patch] 24.3.50; message-send-mail-with-sendmail kills useful error message buffer

[Vitalie Spinu <spinuvit@gmail.com>]

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Hi, 

On error, message-send-mail-with-sendmail pops to the error message
buffer with an obvious intention for the user to see it. But then kills
the buffer.

Consequently the user sees only a completely useless, emacs generated
message like:

   error: "Sending...failed with exit value 78" 


   Vitalie



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From 757150148ebd6ac841133010b31c807191bf448b Mon Sep 17 00:00:00 2001
From: Vitalie Spinu <spinuvit@gmail.com>
Date: Sat, 30 Nov 2013 00:26:42 -0800
Subject: [PATCH] message-send-mail-with-sendmail: don't kill error buffer on
 error

---
 lisp/gnus/message.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/gnus/message.el b/lisp/gnus/message.el
index b7d0ada..f96cd7a 100644
--- a/lisp/gnus/message.el
+++ b/lisp/gnus/message.el
@@ -4739,7 +4739,9 @@ that instead."
 			    (list resend-to-addresses)
 			  '("-t"))))))
 	    (unless (or (null cpr) (and (numberp cpr) (zerop cpr)))
-              (if errbuf (pop-to-buffer errbuf))
+              (when errbuf
+                (pop-to-buffer errbuf)
+                (setq errbuf nil))
 	      (error "Sending...failed with exit value %d" cpr)))
 	  (when message-interactive
 	    (with-current-buffer errbuf
-- 
1.8.1.2