Fix some Texinfo markup

* doc/misc/gnus-faq.texi (FAQ 3-11):
* doc/emacs/frames.texi (Tab Bars): Consistently use @var with
lower-case metasyntactic variables and @minus instead of a dash.
(Text-Only Mouse):
* doc/emacs/files.texi (Auto Revert):
* doc/emacs/misc.texi (emacsclient Options)
(Embedded WebKit Widgets):
* doc/lispref/control.texi (pcase Macro):
* doc/lispref/debugging.texi (Backtraces):
* doc/lispref/files.texi (Truenames):
* doc/lispref/frames.texi (Management Parameters):
* doc/lispref/os.texi (Time Calculations):
* doc/lispref/text.texi (Parsing JSON):
* doc/misc/efaq-w32.texi (Other versions of Emacs, Debugging)
(Swap Caps NT, Printing, Bash, Developing with Emacs):
* doc/misc/efaq.texi (New in Emacs 25):
* doc/misc/emacs-gnutls.texi (Help For Users):
* doc/misc/message.texi (Using S/MIME, Passphrase caching):
* test/manual/etags/tex-src/gzip.texi (Overview): Use @. when a
sentence in the middle of a paragraph ends with an upper-case letter
as per "(texinfo) Ending a Sentence".

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/misc/gnus-faq.texi b/doc/misc/gnus-faq.texi
index fd285396c40..9c1d2d0160a 100644
--- a/doc/misc/gnus-faq.texi
+++ b/doc/misc/gnus-faq.texi
@@ -689,8 +689,9 @@ retrieves via POP3?
 @subsubheading Answer
 
 Yes, if the POP3 server supports the UIDL control (maybe almost servers
-do it nowadays).  To do that, add a @code{:leave VALUE} pair to each
-POP3 mail source.  @xref{Mail Source Specifiers}, for details on VALUE.
+do it nowadays).  To do that, add a @code{:leave @var{value}} pair to
+each POP3 mail source.  @xref{Mail Source Specifiers}, for details on
+@var{value}.
 
 @node FAQ 4 - Reading messages
 @subsection Reading messages