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.

Run admin/update-copyright.

Run admin/update-copyright.

Prefer directed to neutral quotes in docstings and diagnostics.
In docstrings, escape apostrophes that would otherwise be translated
to curved quotes using the newer, simpler rules.
* admin/unidata/unidata-gen.el (unidata-gen-table):
* lisp/align.el (align-region):
* lisp/allout.el (allout-mode, allout-solicit-alternate-bullet):
* lisp/bookmark.el (bookmark-default-annotation-text):
* lisp/calc/calc-aent.el (math-read-if, math-read-factor):
* lisp/calc/calc-lang.el (math-read-giac-subscr)
(math-read-math-subscr):
* lisp/calc/calc-misc.el (report-calc-bug):
* lisp/calc/calc-prog.el (calc-fix-token-name)
(calc-read-parse-table-part):
* lisp/cedet/ede/pmake.el (ede-proj-makefile-insert-dist-rules):
* lisp/cedet/semantic/complete.el (semantic-displayor-show-request):
* lisp/dabbrev.el (dabbrev-expand):
* lisp/emacs-lisp/checkdoc.el (checkdoc-this-string-valid-engine):
* lisp/emacs-lisp/elint.el (elint-get-top-forms):
* lisp/emacs-lisp/lisp-mnt.el (lm-verify):
* lisp/emulation/viper-cmd.el (viper-toggle-search-style):
* lisp/erc/erc-button.el (erc-nick-popup):
* lisp/erc/erc.el (erc-cmd-LOAD, erc-handle-login):
* lisp/eshell/em-dirs.el (eshell/cd):
* lisp/eshell/em-glob.el (eshell-glob-regexp):
* lisp/eshell/em-pred.el (eshell-parse-modifiers):
* lisp/eshell/esh-arg.el (eshell-parse-arguments):
* lisp/eshell/esh-opt.el (eshell-show-usage):
* lisp/files-x.el (modify-file-local-variable):
* lisp/filesets.el (filesets-add-buffer, filesets-remove-buffer)
(filesets-update-pre010505):
* lisp/find-cmd.el (find-generic, find-to-string):
* lisp/gnus/auth-source.el (auth-source-netrc-parse-entries):
* lisp/gnus/gnus-agent.el (gnus-agent-check-overview-buffer)
(gnus-agent-fetch-headers):
* lisp/gnus/gnus-int.el (gnus-start-news-server):
* lisp/gnus/gnus-registry.el:
(gnus-registry--split-fancy-with-parent-internal):
* lisp/gnus/gnus-score.el (gnus-summary-increase-score):
* lisp/gnus/gnus-start.el (gnus-convert-old-newsrc):
* lisp/gnus/gnus-topic.el (gnus-topic-rename):
* lisp/gnus/legacy-gnus-agent.el (gnus-agent-unlist-expire-days):
* lisp/gnus/nnmairix.el (nnmairix-widget-create-query):
* lisp/gnus/spam.el (spam-check-blackholes):
* lisp/mail/feedmail.el (feedmail-run-the-queue):
* lisp/mpc.el (mpc-playlist-rename):
* lisp/net/ange-ftp.el (ange-ftp-shell-command):
* lisp/net/mairix.el (mairix-widget-create-query):
* lisp/net/tramp-cache.el:
* lisp/obsolete/otodo-mode.el (todo-more-important-p):
* lisp/obsolete/pgg-gpg.el (pgg-gpg-process-region):
* lisp/obsolete/pgg-pgp.el (pgg-pgp-process-region):
* lisp/obsolete/pgg-pgp5.el (pgg-pgp5-process-region):
* lisp/org/ob-core.el (org-babel-goto-named-src-block)
(org-babel-goto-named-result):
* lisp/org/ob-fortran.el (org-babel-fortran-ensure-main-wrap):
* lisp/org/ob-ref.el (org-babel-ref-resolve):
* lisp/org/org-agenda.el (org-agenda-prepare):
* lisp/org/org-bibtex.el (org-bibtex-fields):
* lisp/org/org-clock.el (org-clock-notify-once-if-expired)
(org-clock-resolve):
* lisp/org/org-feed.el (org-feed-parse-atom-entry):
* lisp/org/org-habit.el (org-habit-parse-todo):
* lisp/org/org-mouse.el (org-mouse-popup-global-menu)
(org-mouse-context-menu):
* lisp/org/org-table.el (org-table-edit-formulas):
* lisp/org/ox.el (org-export-async-start):
* lisp/play/dunnet.el (dun-score, dun-help, dun-endgame-question)
(dun-rooms, dun-endgame-questions):
* lisp/progmodes/ada-mode.el (ada-goto-matching-start):
* lisp/progmodes/ada-xref.el (ada-find-executable):
* lisp/progmodes/antlr-mode.el (antlr-options-alists):
* lisp/progmodes/flymake.el (flymake-parse-err-lines)
(flymake-start-syntax-check-process):
* lisp/progmodes/python.el (python-define-auxiliary-skeleton):
* lisp/progmodes/sql.el (sql-comint):
* lisp/progmodes/verilog-mode.el (verilog-load-file-at-point):
* lisp/server.el (server-get-auth-key):
* lisp/subr.el (version-to-list):
* lisp/textmodes/reftex-ref.el (reftex-label):
* lisp/textmodes/reftex-toc.el (reftex-toc-rename-label):
* lisp/vc/ediff-diff.el (ediff-same-contents):
* lisp/vc/vc-cvs.el (vc-cvs-mode-line-string):
* test/automated/tramp-tests.el (tramp-test33-asynchronous-requests):
Use directed rather than neutral quotes in diagnostics.

* pcomplete.el (pcomplete-parse-arguments): Parse arguments regardless
of pcomplete-cycle-completions's value.

Fixes: debbugs:18950

Run admin/update-copyright.

Fallback on completion-at-point rather than
pcomplete-expand-and-complete, and only if pcomplete actually failed.
(eshell-cmpl-initialize): Setup completion-at-point.
* lisp/pcomplete.el (pcomplete--entries): Obey pcomplete-ignore-case.