(mail-mode): Allow dash in citation prefixes

in adaptive-fill-regexp and adaptive-fill-first-line-regexp.

diff --git a/lisp/mail/sendmail.el b/lisp/mail/sendmail.el
index b692f8f012c1343694b54036495e98a4a53df635..e5f1495ca8161f23a3ea6e5806761c9b3b946be3 100644 (file)
--- a/lisp/mail/sendmail.el
+++ b/lisp/mail/sendmail.el
@@ -357,10 +357,10 @@ C-c C-v  mail-sent-via (add a Sent-via field for each To or CC)."
   (setq fill-paragraph-function 'mail-mode-fill-paragraph)
   (make-local-variable 'adaptive-fill-regexp)
   (setq adaptive-fill-regexp
-       (concat "[ \t]*[a-z0-9A-Z]*>+[ \t]*\\|" adaptive-fill-regexp))
+       (concat "[ \t]*[-a-z0-9A-Z]*>+[ \t]*\\|" adaptive-fill-regexp))
   (make-local-variable 'adaptive-fill-first-line-regexp)
   (setq adaptive-fill-first-line-regexp
-       (concat "[ \t]*[a-z0-9A-Z]*>+[ \t]*\\|" adaptive-fill-first-line-regexp))
+       (concat "[ \t]*[-a-z0-9A-Z]*>+[ \t]*\\|" adaptive-fill-first-line-regexp))
   ;; `-- ' precedes the signature.  `-----' appears at the start of the
   ;; lines that delimit forwarded messages.
   ;; Lines containing just >= 3 dashes, perhaps after whitespace,