* lisp/mail/: Use lexical-binding

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.

1 files changed, 4 insertions, 4 deletions

diff --git a/lisp/mail/rmailedit.el b/lisp/mail/rmailedit.el
index c3b351d7bc8..fd24bdceccc 100644
--- a/lisp/mail/rmailedit.el
+++ b/lisp/mail/rmailedit.el
@@ -1,4 +1,4 @@
-;;; rmailedit.el --- "RMAIL edit mode"  Edit the current message
+;;; rmailedit.el --- "RMAIL edit mode"  Edit the current message  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 1985, 1994, 2001-2021 Free Software Foundation, Inc.
 
@@ -38,8 +38,8 @@
   (let ((map (make-sparse-keymap)))
     ;; Make a keymap that inherits text-mode-map.
     (set-keymap-parent map text-mode-map)
-    (define-key map "\C-c\C-c" 'rmail-cease-edit)
-    (define-key map "\C-c\C-]" 'rmail-abort-edit)
+    (define-key map "\C-c\C-c" #'rmail-cease-edit)
+    (define-key map "\C-c\C-]" #'rmail-abort-edit)
     map))
 
 (declare-function rmail-summary-disable "rmailsum" ())
@@ -69,7 +69,7 @@ This function runs the hooks `text-mode-hook' and `rmail-edit-mode-hook'.
     (setq-local auto-save-include-big-deletions t)
     ;; If someone uses C-x C-s, don't clobber the rmail file (bug#2625).
     (add-hook 'write-region-annotate-functions
-	      'rmail-write-region-annotate nil t)
+	      #'rmail-write-region-annotate nil t)
     (run-mode-hooks 'rmail-edit-mode-hook)))
 
 ;; Rmail Edit mode is suitable only for specially formatted data.