Don't quote symbols 'like-this' in docstrings etc.

* admin/unidata/uvs.el (uvs-insert-fields-as-bytes):
* lisp/allout-widgets.el (allout-widgets-count-buttons-in-region):
* lisp/allout.el (allout-add-resumptions, allout-mode):
* lisp/calculator.el (calculator-operators):
* lisp/cedet/data-debug.el (dd-propertize):
* lisp/cedet/ede/proj-prog.el (ede-proj-target-makefile-program):
* lisp/cedet/semantic/analyze/debug.el:
(semantic-analyzer-debug-global-miss-text):
* lisp/cedet/semantic/lex-spp.el:
(semantic-lex-spp-replace-or-symbol-or-keyword):
* lisp/cedet/semantic/symref.el:
(semantic-symref-cleanup-recent-buffers-fcn):
* lisp/cedet/semantic/tag.el (semantic-tag-class):
* lisp/cedet/srecode/el.el (srecode-semantic-handle-:el-custom):
* lisp/gnus/nnmairix.el (nnmairix-propagate-marks-upon-close):
* lisp/gnus/pop3.el (pop3-authentication-scheme):
* lisp/help-fns.el (describe-function-orig-buffer):
* lisp/imenu.el (imenu--history-list):
* lisp/mail/feedmail.el (feedmail-confirm-outgoing)
(feedmail-display-full-frame, feedmail-deduce-bcc-where)
(feedmail-queue-default-file-slug)
(feedmail-queue-buffer-file-name):
* lisp/net/mairix.el (mairix-searches-mode-map):
* lisp/net/newst-backend.el (newsticker-retrieval-method)
(newsticker-auto-mark-filter-list):
* lisp/obsolete/vi.el (vi-mode):
* lisp/progmodes/cc-engine.el (c-literal-type):
* lisp/progmodes/cpp.el (cpp-face):
* lisp/progmodes/ebrowse.el (ebrowse-electric-list-looper):
* lisp/progmodes/elisp-mode.el (elisp--xref-make-xref):
* lisp/progmodes/pascal.el (pascal-auto-lineup):
* lisp/progmodes/prog-mode.el (prog-widen):
* lisp/progmodes/verilog-mode.el (verilog-regexp-words)
(verilog-auto-lineup, verilog-auto-reset-widths)
(verilog-auto-arg-format, verilog-auto-inst-template-numbers):
* lisp/textmodes/flyspell.el (flyspell-maybe-correct-transposition)
(flyspell-maybe-correct-doubling):
* lisp/textmodes/table.el (table-justify, table-justify-cell)
(table-justify-row, table-justify-column, table-insert-sequence)
(table--justify-cell-contents):
* lisp/url/url-auth.el (url-get-authentication):
* lisp/window.el (display-buffer-record-window):
* lisp/xml.el (xml-parse-file, xml-parse-region):
* src/gfilenotify.c (Fgfile_add_watch):
Don't quote symbols with apostrophes in doc strings.
Use asymmetric quotes instead.
* lisp/cedet/semantic/complete.el (semantic-displayor-show-request):
Likewise for symbol in diagnostic.
* lisp/image.el (image-extension-data):
* lisp/register.el (frame-configuration-to-register):
* src/buffer.c (syms_of_buffer):
Remove bogus apostrophes after symbols.
* lisp/thumbs.el (thumbs-conversion-program):
Quote Lisp string values using double-quotes, not apostrophes.

lisp/allout.el

@@ -1330,11 +1330,11 @@ cdr is the new value: '(some-var some-value)'.  The pairs can actually be
 triples, where the third element qualifies the disposition of the setting,
 as described further below.
 
-If the optional third element is the symbol 'extend, then the new value
+If the optional third element is the symbol `extend', then the new value
 created by `cons'ing the second element of the pair onto the front of the
 existing value.
 
-If the optional third element is the symbol 'append, then the new value is
+If the optional third element is the symbol `append', then the new value is
 extended from the existing one by `append'ing a list containing the second
 element of the pair onto the end of the existing value.
 
@@ -1838,7 +1838,7 @@ M-x outlineify-sticky       Activate outline mode for current buffer,
                             buffer with name derived from derived from that
                             of current buffer -- \"*BUFFERNAME exposed*\".
 \\[allout-flatten-exposed-to-buffer] `allout-flatten-exposed-to-buffer'
-                            Like above 'copy-exposed', but convert topic
+                            Like above `copy-exposed', but convert topic
                             prefixes to section.subsection... numeric
                             format.
 \\[customize-variable] allout-auto-activation