Run admin/update-copyright.

This patch should not change behavior.  It typically omits backslashes
where they are redundant (e.g., in the string literal "^\$").
In a few places, insert backslashes where they make regular
expressions clearer: e.g., replace "^\*" (equivalent to "^*") with
"^\\*", which has the same effect as a regular expression.
Also, use ‘\ %’ instead of ‘\%’ when avoiding confusion with SCCS IDs,
and similarly use ‘\ $’ instead of ‘\$’ when avoiding confusion with
RCS IDs, as that makes it clearer that the backslash is intended.

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.

* progmodes/cfengine.el (cfengine3-mode): Handle nil
  eldoc-documentation-function.

Update for the upcoming CFEngine 3.7 release: support macros and
quoted context strings; reformat JSON; indent promise attributes 2
units by default; give function parameter descriptions in the eldoc
glue.
* cfengine.el: Update version and docs and fix name.  Autoload
`json-pretty-print'.  Support new features in 3.7.
(cfengine-parameters-indent): Set default promise attribute indent to
2 more than the promise itself.
(cfengine3-macro-regex): New variable to match the new macro syntax.
(cfengine3-font-lock-keywords): Use it to highlight macros.
(cfengine3-indent-line): Use it to indent macros to column 0.
(cfengine3-class-selector-regex): Update for the new quoted strings
format.
(cfengine3-reformat-json-string): New function to reformat a JSON
string using `json-pretty-print'.
(cfengine3-format-function-docstring): Use function parameter
description if it's provided by the cf-promises syntax dump.

* lisp/emacs-lisp/eldoc.el (eldoc-documentation-function): Describe how
major modes should use `add-function' to alter value of the variable.

* lisp/hexl.el (hexl-mode): Set `eldoc-documentation-function' using
`add-function' so the default value is always used.
* lisp/ielm.el (inferior-emacs-lisp-mode): Set
`eldoc-documentation-function' using `add-function' so the default
value is always used.
* lisp/progmodes/cfengine.el (cfengine3-mode): Set
`eldoc-documentation-function' using `add-function' so the default
value is always used.
* lisp/progmodes/elisp-mode (emacs-lisp-mode): Set
`eldoc-documentation-function' using `add-function' so the default
value is always used.
* lisp/progmodes/octave.el (octave-mode): Set
`eldoc-documentation-function' using `add-function' so the default
value is always used.
* lisp/progmodes/python.el (python-mode): Set
`eldoc-documentation-function' using `add-function' so the default
value is always used.
* lisp/simple.el (read--expression): Set `eldoc-documentation-function'
using `add-function' so the default value is always used.

Run admin/update-copyright.

(cfengine3-create-imenu-index): Use it and use ` ' for separation.
(cfengine3-current-defun): New function.
(cfengine3-mode): Set add-log-current-defun-function.

Use strings.
(cfengine3-create-imenu-index): New function.
(cfengine3-mode): Use it for `imenu-create-index-function'.
(cfengine-auto-mode): Improve and prefer cfengine3-mode when
buffer is empty.