Fix problem with folded Gcc headers in Gnus

* lisp/gnus/gnus-msg.el (gnus-inews-do-gcc): Tokenize the gcc
header properly (there may be newlines and tabs in the separators)
(bug#43036).

diff --git a/lisp/gnus/gnus-msg.el b/lisp/gnus/gnus-msg.el
index cdfbf16db5e1910e9db70df84caaa2458d6818bc..e770abc2cdf56b1d2f376f444cee5b0fe4fd9e00 100644 (file)
--- a/lisp/gnus/gnus-msg.el
+++ b/lisp/gnus/gnus-msg.el
@@ -1598,7 +1598,7 @@ this is a reply."
          (message-remove-header "gcc")
          (widen)
          (setq groups (message-unquote-tokens
-                       (message-tokenize-header gcc " ,")))
+                       (message-tokenize-header gcc " ,\n\t")))
          ;; Copy the article over to some group(s).
          (while (setq group (pop groups))
            (setq method (gnus-inews-group-method group)