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From: Lars Balker Rasmussen <lbr@mjolner.dk>
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Subject: [qgnus 0.17] bug in gnus-article-date-lapsed
Date: 03 Dec 1997 17:16:20 +0100
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I tried putting 

(add-hook 'gnus-article-display-hook 'gnus-article-date-lapsed)
(setq gnus-visible-headers 
      (concat gnus-visible-headers "\\|^X-Sent:"))

in my .gnus, and it is indeed nifty!
(gnus-start-date-timer just bugged me though.)

However, because some systems have their clock in the future (or
elsewhere), bad times are bound to reach you.  This is handled
gracefully for all values except current and unknown times, where an
extra newline is inserted, making the header break in half, causing no
end of mayhem, chaos and tears.

This fixes it (Night of the long patches):

*** gnus-art.el~        Wed Nov 26 17:44:34 1997
--- gnus-art.el Wed Dec  3 17:05:37 1997
***************
*** 1362,1370 ****
           num prev)
        (cond
         ((null real-time)
!       "X-Sent: Unknown\n")
         ((zerop sec)
!       "X-Sent: Now\n")
         (t
        (concat
         "X-Sent: "
--- 1362,1370 ----
           num prev)
        (cond
         ((null real-time)
!       "X-Sent: Unknown")
         ((zerop sec)
!       "X-Sent: Now")
         (t
        (concat
         "X-Sent: "

Cheers,
-- 
Lars Balker Rasmussen, Software Engineer, Mjolner Informatics ApS
lbr@mjolner.dk