(cvs-parse-table, cvs-parse-merge, cvs-parse-status, cvs-parse-commit):
Declare vars set by `cvs-match` as dynamic.

Also remove some redundant `:group` arguments.

* lisp/vc/vc.el (vc-ignore): Autoload.

* lisp/vc/pcvs-util.el (cvs-every, cvs-union, cvs-map): Delete functions.
* lisp/vc/cvs-status.el: Require `cl-lib` at runtime.
(cvs-tree-tags-insert): Use `cl-mapcar` and `cl-every` instead.
* lisp/vc/pcvs.el: Require `cl-lib` at runtime.
(cvs-do-removal): Use `cl-every` instead.

* lisp/vc/ediff-init.el: Require `ediff-util` (for `ediff-cleanup-mess`
and `ediff-default-suspend-function`).

* lisp/vc/pcvs-info.el (cvs-fileinfo<): Remove unused vars `subtypea`
and `subtypeb`.

* lisp/vc/vc-git.el:
* lisp/vc/vc-bzr.el: Require `vc-dispatcher` at runtime for
`vc-do-async-command`.

* lisp/speedbar.el: Use lexical-binding.
(speedbar-with-writable): Use `declare`.

* lisp/subr.el (def-edebug-spec): Use `declare`.

* lisp/cedet/ede/base.el: Use lexical-binding.
(ede-with-projectfile): Use `declare`.
(recentf-exclude): Declare var.

* lisp/cedet/ede/pmake.el: Use lexical-binding.
(ede-pmake-insert-variable-shared, ede-pmake-insert-variable-once):
Use `declare`.

* lisp/cedet/ede/proj-comp.el: Use lexical-binding.
(ede-compiler-begin-unique, ede-compiler-only-once)
(ede-linker-begin-unique, ede-linker-only-once): Use `declare`.

* lisp/cedet/semantic/ctxt.el: Use lexical-binding.
(semantic-with-buffer-narrowed-to-context)
(semantic-with-buffer-narrowed-to-command): Use `declare`.
(semantic--progress-reporter): Declare var.
(semantic-ctxt-end-of-symbol-default): Remove unused var `fieldsep`.

* lisp/cedet/semantic/lex-spp.el: Use lexical-binding.
(define-lex-spp-macro-declaration-analyzer)
(define-lex-spp-include-analyzer, semantic-lex-with-macro-used)
(define-lex-spp-macro-undeclaration-analyzer): Use `declare`.
(semantic-lex-spp-symbol-remove): Rename arg to avoid colliding with
dynamic variable `obarray`.
(semantic-lex-spp-symbol-pop): Remove unused var `oldvalue`.
(semantic-lex-spp-lex-text-string): Remove unused var `analyzer`.

* lisp/cedet/semantic/lex.el (define-lex)
(semantic-lex-unterminated-syntax-protection, define-lex-analyzer)
(define-lex-regex-analyzer, define-lex-block-analyzer)
(semantic-lex-catch-errors): Use `declare`.

* lisp/cedet/semantic/tag.el: Use lexical-binding.
(semantic-with-buffer-narrowed-to-current-tag)
(semantic-with-buffer-narrowed-to-tag): Use `declare`.

* lisp/cedet/semantic/wisent.el: Use lexical-binding.
(define-wisent-lexer): Use `declare`.

* lisp/emacs-lisp/cl-lib.el (cl-pushnew): The arg to :test can be any
form not just function form.

* lisp/org/ob-comint.el (org-babel-comint-in-buffer)
(org-babel-comint-with-output): Use `declare`.

* lisp/org/ob-core.el (org-babel-map-src-blocks): Use `declare`.
(org-babel-result-cond): Simplify edebug spec.

* lisp/org/org-clock.el (org-with-clock-position, org-with-clock):
* lisp/org/org-agenda.el (org-agenda-with-point-at-orig-entry):
* lisp/org/ob-tangle.el (org-babel-with-temp-filebuffer): Use `declare`.

* lisp/textmodes/rst.el (push): Remove redundant edebug spec.

* lisp/vc/pcvs-parse.el: Use lexical-binding.
(cvs-parse-buffer): Rename arg to avoid dynbound conflict.
(cvs-or): Use `declare`.

Run "TZ=UTC0 admin/update-copyright".

Make regexps smaller and faster by removing terms that are superfluous
by virtue of standing next to another term that matches more.  See
https://lists.gnu.org/archive/html/emacs-devel/2020-01/msg00949.html
for details.

* lisp/bs.el (bs--make-header-match-string):
* lisp/gnus/deuglify.el (gnus-outlook-repair-attribution-block):
* lisp/gnus/message.el (message-subject-trailing-was-ask-regexp)
(message-subject-trailing-was-regexp):
* lisp/informat.el (Info-validate):
* lisp/net/browse-url.el (browse-url-button-regexp):
* lisp/net/rcirc.el (rcirc-url-regexp):
* lisp/org/ob-core.el (org-babel-remove-result):
* lisp/org/ob-fortran.el (org-babel-fortran-ensure-main-wrap):
* lisp/org/org-capture.el (org-capture-set-target-location):
* lisp/org/org-table.el (org-table-expand-lhs-ranges):
* lisp/org/org.el (org-maybe-keyword-time-regexp, org-ts-regexp)
(org-ts-regexp-inactive, org-ts-regexp-both):
* lisp/play/gametree.el (gametree-hack-file-layout):
* lisp/progmodes/cc-mode.el (c-Java-defun-prompt-regexp):
* lisp/progmodes/idlw-shell.el (idlwave-shell-halting-error):
* lisp/progmodes/ruby-mode.el (ruby-mode-set-encoding):
* lisp/progmodes/verilog-mode.el (verilog-error-font-lock-keywords)
(verilog-verilint-off, verilog-case-indent-level)
(verilog-within-translate-off, verilog-start-translate-off)
(verilog-back-to-start-translate-off, verilog-end-translate-off)
(verilog-expand-dirnames):
* lisp/term.el (term-control-seq-regexp):
* lisp/textmodes/reftex-vars.el (featurep):
* lisp/url/url-gw.el (url-open-telnet):
* lisp/vc/ediff-ptch.el (ediff-context-diff-label-regexp):
* lisp/vc/pcvs-parse.el (cvs-parse-status):
* test/src/regex-emacs-tests.el (regex-tests-PCRE):
Remove subsumed repetitions.
* lisp/progmodes/sh-script.el (sh-syntax-propertize-function):
Simplify repetition of a repetition.

Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

2fcf2df Fix copyright years by hand
26bed8b Update copyright year to 2019
2814292 Fix value of default frame height.  (Bug#33921)