* mh-e/mh-comp.el (mh-send-letter):

* mh-e/mh-comp.el (mh-send-letter):
* mail/sendmail.el (mail-recover-1):
* international/mule-diag.el (describe-current-coding-system-briefly)
(describe-current-coding-system):
* international/mule-cmds.el (select-safe-coding-system)
(select-message-coding-system)
(set-language-environment-coding-systems, set-locale-environment):
* hexl.el (hexl-insert-multibyte-char):
* dos-w32.el (find-buffer-file-type-coding-system):
* simple.el (what-cursor-position):
Replace uses of default-buffer-file-coding-system
with (default-value 'buffer-file-coding-system).