Variable: canlock-force-insert-header
canlock-force-insert-header is a customizable variable defined in
canlock.el.gz.
Value
nil
Documentation
If non-nil, insert a Cancel-Lock or a Cancel-Key header even if the buffer does not look like a news message.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/canlock.el.gz
(defcustom canlock-force-insert-header nil
"If non-nil, insert a Cancel-Lock or a Cancel-Key header even if the
buffer does not look like a news message."
:type 'boolean)