Merge single quote fixes from Emacs's master

This brings in ports of bbf389ea6de (Audit quoting the quote character
in doc strings, 2022-04-22), 2d71fd3b041 (Further doc string quoting
fixes, 2022-04-22), and b2bce107b15 (Further audits of single quotes
in Lisp doc strings, 2022-05-24) from Emacs's master branch, resolving
conflicts with 01b0fb14b (Backport from main: Escape single left
quotes in docstrings, 2022-07-24).

In all cases, take Emacs's side.  There are two cases where I think
Org's version is preferable, org-babel-lua-read-string and
org-agenda-sorting-strategy.  Don't keep those _on bugfix_ to avoid
conflicts when Emacs's emacs-28 branch is merged to its master branch.
When I merge bugfix to main, I'll keep Org's variant, so they'll
eventually make it to Emacs's tree, just not as part of the Org 9.5.x
to emacs-28 syncing.

lisp/ob-core.el

@@ -480,7 +480,7 @@ value.  The value can either be a string or a closure that
 evaluates to a string.  The closure is evaluated when the source
 block is being evaluated (e.g. during execution or export), with
 point at the source block.  It is not possible to use an
-arbitrary function symbol (e.g. \\='some-func), since org uses
+arbitrary function symbol (e.g. `some-func'), since org uses
 lexical binding.  To achieve the same functionality, call the
 function within a closure (e.g. (lambda () (some-func))).
 

lisp/ob-julia.el

@@ -250,8 +250,8 @@ end")
 (defun org-babel-julia-evaluate-external-process
     (body result-type result-params column-names-p)
   "Evaluate BODY in external julia process.
-If RESULT-TYPE equals \\='output then return standard output as a
+If RESULT-TYPE equals `output' then return standard output as a
-string.  If RESULT-TYPE equals \\='value then return the value of the
+string.  If RESULT-TYPE equals `value' then return the value of the
 last statement in BODY, as elisp."
   (cl-case result-type
     (value
@@ -274,8 +274,8 @@ last statement in BODY, as elisp."
 (defun org-babel-julia-evaluate-session
     (session body result-type result-params column-names-p)
   "Evaluate BODY in SESSION.
-If RESULT-TYPE equals \\='output then return standard output as a
+If RESULT-TYPE equals `output' then return standard output as a
-string.  If RESULT-TYPE equals \\='value then return the value of the
+string.  If RESULT-TYPE equals `value' then return the value of the
 last statement in BODY, as elisp."
   (cl-case result-type
     (value

lisp/ob-lua.el

@@ -395,7 +395,7 @@ fd:close()"
         (org-babel-lua-table-or-string results)))))
 
 (defun org-babel-lua-read-string (string)
-  "Strip single quotes from around Lua string."
+  "Strip \\=' characters from around Lua string."
   (org-unbracket-string "'" "'" string))
 
 (provide 'ob-lua)

lisp/ob-table.el

@@ -84,7 +84,7 @@ is the equivalent of the following source code block:
  #+end_src
 
 NOTE: The quotation marks around the function name,
-\\='source-block\\=', are optional.
+`source-block', are optional.
 
 NOTE: By default, string variable names are interpreted as
 references to source-code blocks, to force interpretation of a

lisp/org-agenda.el

@@ -1615,7 +1615,7 @@ alpha-down         Sort headlines alphabetically, reversed.
 
 The different possibilities will be tried in sequence, and testing stops
 if one comparison returns a \"not-equal\".  For example, the default
-    \\='(time-up category-keep priority-down)
+    `(time-up category-keep priority-down)'
 means: Pull out all entries having a specified time of day and sort them,
 in order to make a time schedule for the current day the first thing in the
 agenda listing for the day.  Of the entries without a time indication, keep
@@ -4124,7 +4124,7 @@ dimming them."                   ;FIXME: The arg isn't used, actually!
 
 If the header at `org-hd-marker' is blocked according to
 `org-entry-blocked-p', then if `org-agenda-dim-blocked-tasks' is
-\\='invisible and the header is not blocked by checkboxes, set the
+`invisible' and the header is not blocked by checkboxes, set the
 text property `org-todo-blocked' to `invisible', otherwise set it
 to t."
   (when (get-text-property 0 'todo-state entry)

lisp/org-table.el

@@ -5465,7 +5465,7 @@ The table is taken from the parameter TXT, or from the buffer at point."
         (nreverse table)))))
 
 (defun org-table-collapse-header (table &optional separator max-header-lines)
-  "Collapse the lines before \\='hline into a single header.
+  "Collapse the lines before `hline' into a single header.
 
 The given TABLE is a list of lists as returned by `org-table-to-lisp'.
 The leading lines before the first `hline' symbol are considered

lisp/ox-html.el

@@ -2909,7 +2909,7 @@ Starred and \"displaymath\" environments are not numbered."
 
 (defun org-html--unlabel-latex-environment (latex-frag)
   "Change environment in LATEX-FRAG string to an unnumbered one.
-For instance, change an \\='equation\\=' environment to \\='equation*\\='."
+For instance, change an `equation' environment to `equation*'."
   (replace-regexp-in-string
    "\\`[ \t]*\\\\begin{\\([^*]+?\\)}"
    "\\1*"