Remove some redundant `:group` args as well.
* lisp/mail/supercite.el: Use lexical-binding.
(completer-disable): Declare var.
(sc-set-variable): Don't rely on dynbind to access `help` variable.
* lisp/mail/mail-extr.el: Use lexical-binding.
(mail-extract-address-components): Avoid use of dynamic scoping to
refer to local vars.
* lisp/mail/mailabbrev.el: Use lexical-binding.
(mail-abbrev-make-syntax-table): Rename `_` variable to `syntax-_`.
* lisp/mail/mailheader.el: Use lexical-binding.
(headers): Don't declare as dynbound globally.
(mail-header-set, mail-header-merge): Declare `headers` as dynbound
locally, instead. Mark those functions as obsolete.
(mail-header-format): Use `alist-get` instead of `mail-header`.
* lisp/mail/binhex.el (binhex-decode-region-external): Remove always-nil
var `firstline`.
* lisp/mail/emacsbug.el: Use lexical-binding.
(report-emacs-bug): Remove always-nil var `message-end-point`.
* lisp/mail/rmail-spam-filter.el: Use lexical-binding.
(bbdb/mail_auto_create_p): Declare variable.
* lisp/mail/rmail.el (rmail-get-new-mail): Remove always-nil var
`delete-files`.
* lisp/mail/rmailout.el: Use lexical-binding.
(rmail-output-read-file-name): Remove unused var `err`.
(rmail-convert-to-babyl-format): Remove unused var `count`.
(rmail-output-as-mbox): Remove unused vars `from` and `date`.
* lisp/mail/rmailsort.el: Use lexical-binding.
(rmail-sort-messages): Remove unused var `msginfo`.
* lisp/mail/rfc822.el: Use lexical-binding.
* lisp/mail/rmailedit.el: Use lexical-binding.
* lisp/mail/mailclient.el: Use lexical-binding.
* lisp/mail/blessmail.el: Use lexical-binding.
* lisp/mail/mail-hist.el: Use lexical-binding.
* lisp/mail/rmailkwd.el: Use lexical-binding.
* lisp/mail/rmailmsc.el: Use lexical-binding.
* lisp/mail/uce.el: Use lexical-binding.
* lisp/mail/unrmail.el: Use lexical-binding.
* lisp/mail/rmailout.el (rmail-output): Fix off-by-one error in
deciding when to advance to the next message under non-nil
'rmail-output-reset-deleted-flag'. (Bug#44839)
Restore lines saying "Maintainer: emacs-devel@gnu.org" when there is
no special maintainer for a file. Although this wasn't documented
it was common practice and removing the lines didn't have consensus.
* lisp/mail/rmailout.el (rmail-output-reset-deleted-flag): New
defcustom.
(rmail-output): When 'rmail-output-reset-deleted-flag' is non-nil,
reset the Deleted flag of the appended messages, and if COUNT is
greater than 1, do not ignore deleted messages. Update the doc
string accordingly. (Bug#31271)
* doc/emacs/rmail.texi (Rmail Output): Document
'rmail-output-reset-deleted-flag'.
* etc/NEWS: Mention the new user option.
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
This resembles the 2001-05-07 change to rmail-output-read-rmail-file-name,
which was never copied to rmail-output-read-file-name.
It's more complicated now due to Rmail's buffer swapping.
* lisp/mail/rmailout.el (rmail-output-read-file-name):
Check rmail-output-file-alist against the full message body
in the correct rmail buffer.
* lisp/mail/rmail.el: Comment.
Instead, query before modifications that would save it.
* mail/rmail.el (rmail-was-converted): New variable.
(rmail-seriously-modified): New variable.
(rmail-perm-variables): Set them to nil.
(rmail-convert-babyl-to-mbox): Don't query about converting Babyl file.
Instead, set rmail-was-converted.
(rmail-modify-format): New function. Query if save will change format.
(rmail-dont-modify-format): New function.
(rmail-duplicate-message, rmail-get-new-mail):
Call rmail-modify-format.
(rmail-set-header): Call rmail-dont-modify-format.
(rmail-set-attribute): Likewise.
(rmail-expunge-confirmed): Call rmail-modify-format.
* mail/rmailout.el (rmail-output-to-rmail-buffer):
Call rmail-modify-format.
(rmail-delete-unwanted-fields): Ignore case. Use line-beg-pos.
(rmail-output, rmail-output-as-seen): Change the "from-gnus" argument to
"not-rmail", and make it work. Simplify.
