Fix minor text quoting problems in lisp top level

Fix minor text quoting problems in lisp top level

* lisp/apropos.el (apropos-describe-plist):
* lisp/cus-theme.el (customize-themes):
* lisp/dired.el (dired-log):
* lisp/help-fns.el (describe-variable):
* lisp/hexl.el (hexl-insert-multibyte-char):
* lisp/info.el (Info-finder-find-node):
* lisp/json.el (json-read-string):
* lisp/novice.el (disabled-command-function)
(disabled-command-function):
* lisp/startup.el (normal-mouse-startup-screen):
* lisp/woman.el (WoMan-log, WoMan-warn):
Respect text quoting style in doc string or diagnostic.
* lisp/replace.el (replace-character-fold):
* src/syntax.c (Fmodify_syntax_entry):
Escape an apostrophe in a docstring.
* lisp/tempo.el (tempo-define-template):
Remove confusing apostrophe from docstring.
* lisp/whitespace.el (whitespace-mark-x):
Use directed quotes in docstring.