PATCH: Make nnrss fail gracefully when it can't fetch a feed

[Mark Plaksin <happy@mcplaksin.org>]

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When nnrss can't fetch a feed an error is signalled.  This patch makes
nnrss print a warning instead.

When you use 'g' from the Group buffer, the current behavior prevents the
rest of your feeds from being checked.  The root cause is the use of
`(error)' in mm-url-insert-file-contents-external.  This patch just adds a
condition-case in nnrss.el.

I don't know whether I used the right -message function.  What's the
difference between nnheader-message and gnus-message?


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--- nnrss.el.orig	2005-12-21 12:43:03.000000000 -0500
+++ nnrss.el	2005-12-21 12:43:13.000000000 -0500
@@ -380,7 +380,9 @@
 	;; FIXME: shouldn't binding `coding-system-for-read' be moved
 	;; to `mm-url-insert'?
 	(let ((coding-system-for-read 'binary))
-	  (mm-url-insert url)))
+          (condition-case nil
+              (mm-url-insert url)
+            (error (nnheader-message 3 "nnrss: Failed to fetch %s" url)))))
       (nnheader-remove-cr-followed-by-lf)
       ;; Decode text according to the encoding attribute.
       (when (setq cs (nnrss-get-encoding))