* lisp/emulation/viper-cmd.el (viper-submit-report):
* lisp/emulation/viper-init.el (viper-set-insert-cursor-type)
(viper-restore-cursor-type, viper-use-replace-region-delimiters)
(viper-has-face-support-p, viper-window-display-p)
(viper-color-display-p, viper-device-type):
* lisp/emulation/viper-mous.el (viper-mouse-click-search-word)
(viper-mouse-click-insert-word, viper-mouse-click-get-word)
(viper-mouse-click-posn, viper-mouse-click-window):
* lisp/emulation/viper-util.el (viper-abbreviate-file-name)
(viper-set-replace-overlay, viper-maybe-checkout): Remove XEmacs
compat code.

* lisp/auth-source.el (auth-source-backend-parse-parameters)
(auth-source-search-collection)
(auth-source-secrets-listify-pattern)
(auth-source--decode-octal-string, auth-source-plstore-search):
* lisp/registry.el (registry-lookup)
(registry-lookup-breaks-before-lexbind)
(registry-lookup-secondary, registry-lookup-secondary-value)
(registry-search, registry-delete, registry-size, registry-full)
(registry-insert, registry-reindex, registry-prune)
(registry-collect-prune-candidates):
* lisp/subr.el (nbutlast, process-live-p):
* lisp/tab-bar.el (tab-bar-list):
* lisp/cedet/ede/linux.el (ede-linux--get-archs)
(ede-linux--include-path, ede-linux-load):
* lisp/erc/erc-log.el (erc-log-all-but-server-buffers):
* lisp/erc/erc-pcomplete.el (pcomplete-erc-commands)
(pcomplete-erc-ops, pcomplete-erc-not-ops, pcomplete-erc-nicks)
(pcomplete-erc-all-nicks, pcomplete-erc-channels)
(pcomplete-erc-command-name, pcomplete-erc-parse-arguments):
* lisp/eshell/em-term.el (eshell-visual-command-p):
* lisp/gnus/gnus-cache.el (gnus-cache-fully-p):
* lisp/gnus/nnmail.el (nnmail-get-active)
(nnmail-fancy-expiry-target):
* lisp/mail/mail-utils.el (mail-string-delete):
* lisp/mail/supercite.el (sc-hdr, sc-valid-index-p):
* lisp/net/ange-ftp.el (ange-ftp-use-smart-gateway-p):
* lisp/net/nsm.el (nsm-save-fingerprint-maybe)
(nsm-network-same-subnet, nsm-should-check):
* lisp/net/rcirc.el (rcirc-looking-at-input):
* lisp/net/tramp-cache.el (tramp-get-hash-table):
* lisp/net/tramp-compat.el (tramp-compat-process-running-p):
* lisp/net/tramp-smb.el (tramp-smb-get-share)
(tramp-smb-get-localname, tramp-smb-read-file-entry)
(tramp-smb-get-cifs-capabilities, tramp-smb-get-stat-capability):
* lisp/net/zeroconf.el (zeroconf-list-service-names)
(zeroconf-list-service-types, zeroconf-list-services)
(zeroconf-get-host, zeroconf-get-domain)
(zeroconf-get-host-domain):
* lisp/nxml/rng-xsd.el (rng-xsd-compile)
(rng-xsd-make-date-time-regexp, rng-xsd-convert-date-time):
* lisp/obsolete/erc-hecomplete.el (erc-hecomplete)
(erc-command-list, erc-complete-at-prompt):
* lisp/org/ob-scheme.el (org-babel-scheme-get-buffer-impl):
* lisp/org/ob-shell.el (org-babel--variable-assignments:sh-generic)
(org-babel--variable-assignments:bash_array)
(org-babel--variable-assignments:bash_assoc)
(org-babel--variable-assignments:bash):
* lisp/org/org-clock.el (org-day-of-week):
* lisp/progmodes/cperl-mode.el (cperl-char-ends-sub-keyword-p):
* lisp/progmodes/gud.el (gud-find-c-expr, gud-innermost-expr)
(gud-prev-expr, gud-next-expr):
* lisp/textmodes/table.el (table--at-cell-p, table--probe-cell)
(table--get-cell-justify-property)
(table--get-cell-valign-property)
(table--put-cell-justify-property)
(table--put-cell-valign-property): Fix typos.

* lisp/so-long.el (fboundp): Doc fix.
(so-long-mode-line-info, so-long-mode)
(so-long--check-header-modes): Fix typos.

* lisp/emulation/viper-mous.el (viper-surrounding-word)
(viper-mouse-click-get-word): Fix typos.
(viper-mouse-click-search-word): Doc fix.

* lisp/erc/erc-backend.el (erc-forward-word, erc-word-at-arg-p)
(erc-bounds-of-word-at-point): Fix typos.
(erc-decode-string-from-target, define-erc-response-handler):
Refill docstring.

* lisp/erc/erc-dcc.el (pcomplete/erc-mode/DCC): Fix typo.
(erc-dcc-get-host, erc-dcc-auto-mask-p, erc-dcc-get-file):
Doc fixes.

* lisp/erc/erc-networks.el (erc-network-name): Fix typo.
(erc-determine-network): Refill docstring.

* lisp/net/dbus.el (dbus-list-hash-table)
(dbus-string-to-byte-array, dbus-byte-array-to-string)
(dbus-check-event): Fix typos.
(dbus-introspect-get-property): Doc fix.

* lisp/net/tramp-adb.el (tramp-adb-file-name-handler):
Rename ARGS to ARGUMENTS.  Doc fix.
(tramp-adb-sh-fix-ls-output, tramp-adb-execute-adb-command)
(tramp-adb-find-test-command): Fix typos.

* lisp/net/tramp.el (tramp-set-completion-function)
(tramp-get-completion-function)
(tramp-completion-dissect-file-name)
(tramp-completion-dissect-file-name1)
(tramp-get-completion-methods, tramp-get-completion-user-host)
(tramp-get-inode, tramp-get-device, tramp-mode-string-to-int)
(tramp-call-process, tramp-call-process-region)
(tramp-process-lines): Fix typos.
(tramp-interrupt-process): Doc fix.

* lisp/org/ob-core.el (org-babel-named-src-block-regexp-for-name)
(org-babel-named-data-regexp-for-name): Doc fix.
(org-babel-src-block-names, org-babel-result-names): Fix typos.

* lisp/progmodes/inf-lisp.el (lisp-input-filter): Doc fix.
(lisp-fn-called-at-pt): Fix typo.

* lisp/progmodes/xref.el (xref-backend-identifier-at-point):
Doc fix.
(xref-backend-identifier-completion-table): Fix typo.

* lisp/emulation/edt-mapper.el (edt-mapper, edt-xserver)
(edt-map-key): Remove XEmacs compat code.
(edt-window-system): Redefine as obsolete variable alias for
'window-system'.

* lisp/emulation/edt.el (top-level, edt-emacs-variant)
(edt-window-system, edt-xserver, edt-page-backward)
(edt-beginning-of-line, edt-end-of-line-forward)
(edt-end-of-line-backward, edt-one-word-forward)
(edt-one-word-backward, edt-character, edt-line-forward)
(edt-next-line, edt-previous-line, edt-top, edt-find-forward)
(edt-find-backward, edt-find-next-forward)
(edt-find-next-backward, edt-reset, edt-advance, edt-backup)
(edt-define-key, edt-bottom-check, edt-sentence-forward)
(edt-sentence-backward, edt-paragraph-forward)
(edt-paragraph-backward, edt-restore-key, edt-window-top)
(edt-window-bottom, edt-scroll-window-backward-line)
(edt-line-to-bottom-of-window, edt-line-to-middle-of-window)
(edt-goto-percentage, edt-display-the-time, edt-remember)
(edt-split-window, edt-load-keys, edt-emulation-on)
(edt-emulation-off, edt-default-emulation-setup)
(edt-user-emulation-setup, edt-select-default-global-map)
(edt-select-user-global-map): Remove XEmacs compat code.

* lisp/emulation/viper-ex.el (viper-ex-read-file-name): Ditto.

* lisp/emulation/viper-init.el (viper-ms-style-os-p)
(viper-has-face-support-p, viper-deactivate-input-method)
(viper-activate-input-method, viper-set-input-method): Ditto.

* lisp/emulation/viper-util.el
(viper-get-saved-cursor-color-in-replace-mode)
(viper-get-saved-cursor-color-in-insert-mode)
(viper-get-saved-cursor-color-in-emacs-mode)
(viper-set-replace-overlay, viper-key-to-emacs-key)
(viper-set-unread-command-events): Ditto.

* lisp/emulation/viper.el (viper-go-away, viper-set-hooks)
(viper-non-hook-settings): Remove XEmacs compat code.

* lisp/emulation/viper-cmd.el (viper-special-read-and-insert-char)
(viper-next-line-carefully, viper-next-line)
(viper-previous-line): Ditto.

* lisp/emulation/viper-mous.el (viper-surrounding-word)
(viper-parse-mouse-key): Remove XEmacs compat code.

* lisp/mail/feedmail.el (top-level): Remove outdated comment.
(feedmail-run-the-queue): Remove leftover XEmacs compat code.
(feedmail-nuke-bcc): Doc fix.

* lisp/emulation/viper.el (top-level, viper-mode)
* lisp/net/rfc2104.el (top-level): Doc fix.

* lisp/textmodes/table.el (top-level): Remove obsolete todo.

* lisp/emulation/cua-rect.el (cua-help-for-rectangle): Check for
'control value (bug#18120).

Copyright-paperwork-exempt: yes

* admin/charsets/mapconv:
* build-aux/gitlog-to-changelog (parse_amend_file, git_dir_option):
* lisp/progmodes/verilog-mode.el (verilog-delay-re):
(verilog-type-font-keywords, verilog-read-always-signals-recurse):
(verilog-is-number):
* lisp/progmodes/vera-mode.el (vera-font-lock-keywords):
* test/src/emacs-module-tests.el (mod-test-sum-test):
* lisp/xml.el: (xml--entity-replacement-text):
* lisp/version.el (emacs-repository-version-git):
* lisp/textmodes/sgml-mode.el (sgml-quote):
* lisp/textmodes/css-mode.el (css-escapes-re)
(css--colors-regexp):
* lisp/progmodes/prolog.el (prolog-syntax-propertize-function):
* lisp/progmodes/hideif.el (hif-token-regexp, hif-tokenize):
* lisp/progmodes/ebnf-dtd.el: (ebnf-dtd-attlistdecl)
(ebnf-dtd-entitydecl, ebnf-dtd-lex):
* lisp/progmodes/ebnf-ebx.el (ebnf-ebx-hex-character):
* lisp/progmodes/ebnf-abn.el (ebnf-abn-character):
* lisp/progmodes/cperl-mode.el (cperl-highlight-charclass)
(cperl-find-pods-heres):
* lisp/progmodes/cc-mode.el (c-maybe-quoted-number-head)
(c-maybe-quoted-number, c-parse-quotes-before-change)
(c-parse-quotes-after-change, c-quoted-number-head-before-point)
(c-quoted-number-straddling-point):
* lisp/progmodes/ada-mode.el (featurep, ada-in-numeric-literal-p)
(ada-font-lock-keywords):
* lisp/org/org-mobile.el (org-mobile-copy-agenda-files)
* lisp/org/org-table.el (org-table-number-regexp):
(org-mobile-update-checksum-for-capture-file):
* lisp/nxml/xsd-regexp.el (xsdre-gen-categories):
* lisp/nxml/xmltok.el (let*):
* lisp/nxml/rng-xsd.el (rng-xsd-convert-hex-binary)
(rng-xsd-convert-any-uri):
* lisp/nxml/rng-uri.el (rng-uri-file-name-1)
(rng-uri-unescape-multibyte, rng-uri-unescape-unibyte)
(rng-uri-unescape-unibyte-match)
(rng-uri-unescape-unibyte-replace):
* lisp/nxml/rng-cmpct.el (rng-c-process-escapes):
* lisp/nxml/nxml-maint.el (nxml-insert-target-repertoire-glyph-set):
* lisp/net/shr-color.el (shr-color->hexadecimal):
* lisp/mail/rfc2231.el (rfc2231-decode-encoded-string):
* lisp/international/mule-cmds.el (read-char-by-name):
* lisp/htmlfontify.el (hfy-hex-regex):
* lisp/gnus/nneething.el (nneething-decode-file-name):
* lisp/gnus/mml-sec.el (mml-secure-find-usable-keys):
* lisp/gnus/gnus-art.el (gnus-button-mid-or-mail-heuristic-alist):
* lisp/faces.el (read-color):
* lisp/epg.el (epg--status-ERRSIG, epg--status-VALIDSIG)
(epg--status-SIG_CREATED, epg--decode-percent-escape)
(epg--decode-hexstring, epg--decode-quotedstring)
(epg-dn-from-string):
* lisp/emulation/cua-rect.el (cua-incr-rectangle):
* lisp/dnd.el (dnd-unescape-uri):
* lisp/cedet/semantic/lex.el (semantic-lex-number-expression):
* lisp/cedet/semantic/java.el (semantic-java-number-regexp):
* lisp/calc/calc-lang.el (pascal):
* lisp/calc/calc-ext.el (math-read-number-fancy):
* lisp/calc/calc-aent.el (math-read-token):
Replace various combinations of [0-9a-fA-F] with [[:xdigit:]].
(Bug#36167)

This reverts commit 698ff554ac2699ec48fefc85a1307cbc4a183b0d.