GitLab

(mail-yank-ignored-headers): Use regexp-opt.
(mail-mode-map): Move initialization into declaration.
(mail-sent-via): Remove unused shadowed var `to-line'.
(mail-mailer-swallows-blank-line): Use with-temp-buffer.
(mail-bury, sendmail-send-it, mail-do-fcc): Use with-current-buffer.
(mail-do-fcc): Use dolist and push.
(mail-mode-fill-paragraph): Pass the arg to fill-region-as-paragraph.