* lisp/doc-view.el (doc-view-intersection):
* lisp/gnus/gnus-range.el (gnus-intersection):
* lisp/htmlfontify.el (hfy-interq):
* lisp/loadhist.el (file-set-intersect):
* lisp/mail/smtpmail.el (smtpmail-intersection): Make obsolete in
favor of seq-intersection.  Update all callers.

* lisp/url/url-dav.el (url-intersection): Redefine as obsolete
function alias for seq-intersection.  Update callers.

* lisp/mpc.el (mpc-intersection, mpc-cmd-list, mpc-reorder):
Use seq-intersection.

* lisp/mail/mail-extr.el:
* lisp/mail/rmail.el (rmail-start-mail):
* lisp/net/gnutls.el (gnutls-boot-parameters):
* lisp/net/imap.el (imap-starttls-open):
* lisp/net/pop3.el (pop3-list):
* lisp/url/url-cookie.el (url-cookie-save-interval):
* lisp/url/url-history.el (url-history-save-interval)
(url-history-track):
* lisp/url/url-mailto.el (url-mailto): Remove redundant #' before lambda.

* lisp/calendar/icalendar.el (icalendar-version):
* lisp/dframe.el (dframe-version):
* lisp/emacs-lisp/checkdoc.el (checkdoc-version):
* lisp/emulation/edt.el (edt-version):
* lisp/international/mule.el (mule-version):
* lisp/linum.el (linum-version):
* lisp/play/bubbles.el (bubbles-version):
* lisp/textmodes/remember.el (remember-version):
* lisp/url/url-vars.el (url-version):
* lisp/woman.el (woman-version): Use emacs-version instead of obsolete
version variables.

* lisp/eshell/esh-opt.el:
* lisp/international/ccl.el:
* lisp/pcmpl-linux.el:
* lisp/shell.el:
* lisp/url/url-news.el: Delete some commented out defgroups.

7355209f53 (origin/emacs-27) * lisp/window.el (recenter-top-bottom): ...
dc78f8a4ea (emacs-27) url-http.el: Special-case NTLM authentication
85b0137858 * lisp/isearch.el (isearch-lazy-highlight): Fix defcustom ...
cbeda21083 Sync latest SKK-JISYO.L

* lisp/align.el (align-mode-rules-list)
(align-mode-exclude-rules-list):
* lisp/bookmark.el (bookmark-current-bookmark)
(bookmark-annotation-name)
(bookmark--annotation-from-bookmark-list):
* lisp/calc/calc-embed.el (calc-embedded-all-active)
(calc-embedded-some-active):
* lisp/comint.el (comint-password-function):
* lisp/completion.el (completion-syntax-table):
* lisp/dframe.el (dframe-track-mouse-function)
(dframe-help-echo-function, dframe-mouse-click-function)
(dframe-mouse-position-function, dframe-timer)
(dframe-attached-frame, dframe-controlled):
* lisp/ehelp.el (electric-help-orig-major-mode):
* lisp/eshell/esh-util.el (eshell-path-env):
* lisp/expand.el (expand-pos, expand-index, expand-point):
* lisp/face-remap.el (text-scale-mode-remapping)
(text-scale-mode-lighter, text-scale-mode-amount)
(text-scale-remap-header-line, buffer-face-mode-remapping):
* lisp/ffap.el (ffap-menu-alist):
* lisp/files-x.el (connection-local-variables-alist):
* lisp/foldout.el (foldout-fold-list, foldout-mode-line-string):
* lisp/follow.el (follow-start-end-invalid):
* lisp/forms.el (forms--mode-setup):
* lisp/gnus/message.el (message-cross-post-old-target)
(message-options):
* lisp/help-mode.el (help-xref-stack, help-xref-forward-stack)
(help-xref-stack-item, help-xref-stack-forward-item):
* lisp/hexl.el (hexl-mode--old-var-vals, hexl-ascii-overlay):
* lisp/hilit-chg.el (hilit-chg-string):
* lisp/ido.el (ido-eoinput):
* lisp/imenu.el (imenu-generic-expression)
(imenu-create-index-function, imenu-default-goto-function)
(imenu-prev-index-position-function)
(imenu-extract-index-name-function, imenu-name-lookup-function)
(imenu-syntax-alist, imenu-case-fold-search):
* lisp/jka-compr.el (jka-compr-really-do-compress):
* lisp/language/ethio-util.el (ethio-prefer-ascii-space):
* lisp/leim/quail/hangul.el (hangul-input-method-help-text):
* lisp/leim/quail/japanese.el (quail-japanese-package-saved):
* lisp/linum.el (linum-overlays, linum-available):
* lisp/man.el (Man-original-frame, Man-arguments, Man--sections)
(Man--refpages, Man-page-list, Man-current-page)
(Man-page-mode-string):
* lisp/pcomplete.el (pcomplete-current-completions)
(pcomplete-last-completion-length)
(pcomplete-last-completion-stub, pcomplete-last-completion-raw)
(pcomplete-last-window-config, pcomplete-window-restore-timer):
* lisp/reveal.el (reveal-open-spots, reveal-last-tick):
* lisp/ruler-mode.el (ruler-mode):
* lisp/scroll-lock.el (scroll-lock-preserve-screen-pos-save):
* lisp/server.el (server-buffer-clients, server-existing-buffer):
* lisp/tab-line.el (tab-line-exclude):
* lisp/tar-mode.el (tar-data-buffer, tar-data-swapped):
* lisp/thumbs.el (thumbs-current-tmp-filename)
(thumbs-current-image-filename, thumbs-extra-images)
(thumbs-image-num, thumbs-buffer, thumbs-marked-list):
* lisp/tutorial.el (tutorial--point-before-chkeys)
(tutorial--point-after-chkeys, tutorial--lang):
* lisp/url/url-vars.el (url-current-object)
(url-current-mime-headers, url-current-lastloc):
* lisp/view.el (view-mode, view-old-buffer-read-only)
(view-old-Helper-return-blurb, view-page-size)
(view-half-page-size, view-last-regexp, view-return-to-alist)
(view-exit-action, view-overlay):
* lisp/wid-edit.el (widget-global-map, widget-field-new)
(widget-field-list, widget-field-last, widget-field-was):
* lisp/woman.el (woman-imenu-done): Prefer defvar-local.

* lisp/url/url-http.el (url-http-handle-authentication): Do not
signal an error on NTLM authorization strings.  (Bug#43566)

* lisp/url/url-dav.el: Use lexical-binding.
(url-dav-process-DAV:prop): Remove unused var `handler-func`.
(url-dav-lock-resource): Remove unused var `child-url`.
(url-dav-active-locks): Remove unused var `properties`.
(url-dav-delete-directory): Remove unused var `props`.
(url-dav-file-name-completion): Remove unused var `result`.

* lisp/url/url-expand.el (url-expand-file-name): Use \s

* lisp/url/url-file.el (url-file): Improve regexp.

* lisp/url/url-gw.el: Use lexical-binding.
(url-open-stream): Remove unused var `cur-retries`, `retry`, `errobj`.

* lisp/url/url-imap.el: Use lexical-binding.
(imap-username, imap-password): Declare.

* lisp/url/url-mailto.el: Use lexical-binding.
(url-mailto): Remove unused var `func`.  Use `push`.

* lisp/url/url-news.el: Use lexical-binding.
(url-news): Remove unused var `article-brackets`.

* lisp/url/url-cid.el:
* lisp/url/url-cache.el:
* lisp/url/url-about.el:
* lisp/url/url-tramp.el:
* lisp/url/url-proxy.el:
* lisp/url/url-privacy.el:
* lisp/url/url-nfs.el:
* lisp/url/url-ldap.el:
* lisp/url/url-misc.el:
* lisp/url/url-methods.el: Use lexical-binding.