Default mbox "From " time zone to -0000

* lisp/mail/rmailout.el (rmail-nuke-pinhead-header):
Default the time zone to "-0000" instead of "EST", as "-0000" is
the RFC-2822-and-later standard for unknown time zones.

1 files changed, 2 insertions, 3 deletions

diff --git a/lisp/mail/rmailout.el b/lisp/mail/rmailout.el
index c1371308d4f..18f980df975 100644
--- a/lisp/mail/rmailout.el
+++ b/lisp/mail/rmailout.el
@@ -327,15 +327,14 @@ Replaces the From line with a \"Mail-from\" header.  Adds \"Date\" and
                      "Date: \\2, \\4 \\3 \\9 \\5 "
 
                      ;; The timezone could be matched by group 7 or group 10.
-                     ;; If neither of them matched, assume EST, since only
-                     ;; Easterners would be so sloppy.
+                     ;; If neither matched, use "-0000" for an unknown zone.
                      ;; It's a shame the substitution can't use "\\10".
                      (cond
                       ((/= (match-beginning 7) (match-end 7)) "\\7")
                       ((/= (match-beginning 10) (match-end 10))
                        (buffer-substring (match-beginning 10)
                                          (match-end 10)))
-                      (t "EST"))
+                      (t "-0000"))
                      "\n"))
                   ;; Keep and reformat the sender if we don't
                   ;; have a From: field.