doc: convert git-imap-send synopsis and options to new style

Convert git-imap-send from [verse]/single-quote style to the modern
synopsis-block style:

- Replace [verse] with [synopsis] in SYNOPSIS block
- Backtick-quote all OPTIONS terms
- Backtick-quote all config keys in config/imap.adoc
- Backtick-quote bare config key references in prose

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: jnavila

Documentation/config/imap.adoc

@@ -1,44 +1,44 @@
-imap.folder::
+`imap.folder`::
 	The folder to drop the mails into, which is typically the Drafts
 	folder. For example: `INBOX.Drafts`, `INBOX/Drafts` or
 	`[Gmail]/Drafts`. The IMAP folder to interact with MUST be specified;
 	the value of this configuration variable is used as the fallback
 	default value when the `--folder` option is not given.
 
-imap.tunnel::
+`imap.tunnel`::
 	Command used to set up a tunnel to the IMAP server through which
 	commands will be piped instead of using a direct network connection
-	to the server. Required when imap.host is not set.
+	to the server. Required when `imap.host` is not set.
 
-imap.host::
+`imap.host`::
 	A URL identifying the server. Use an `imap://` prefix for non-secure
 	connections and an `imaps://` prefix for secure connections.
-	Ignored when imap.tunnel is set, but required otherwise.
+	Ignored when `imap.tunnel` is set, but required otherwise.
 
-imap.user::
+`imap.user`::
 	The username to use when logging in to the server.
 
-imap.pass::
+`imap.pass`::
 	The password to use when logging in to the server.
 
-imap.port::
+`imap.port`::
 	An integer port number to connect to on the server.
-	Defaults to 143 for imap:// hosts and 993 for imaps:// hosts.
-	Ignored when imap.tunnel is set.
+	Defaults to 143 for `imap://` hosts and 993 for `imaps://` hosts.
+	Ignored when `imap.tunnel` is set.
 
-imap.sslverify::
+`imap.sslverify`::
 	A boolean to enable/disable verification of the server certificate
 	used by the SSL/TLS connection. Default is `true`. Ignored when
-	imap.tunnel is set.
+	`imap.tunnel` is set.
 
-imap.preformattedHTML::
+`imap.preformattedHTML`::
 	A boolean to enable/disable the use of html encoding when sending
-	a patch.  An html encoded patch will be bracketed with <pre>
+	a patch.  An html encoded patch will be bracketed with `<pre>`
 	and have a content type of text/html.  Ironically, enabling this
 	option causes Thunderbird to send the patch as a plain/text,
 	format=fixed email.  Default is `false`.
 
-imap.authMethod::
+`imap.authMethod`::
 	Specify the authentication method for authenticating with the IMAP server.
 	If Git was built with the NO_CURL option, or if your curl version is older
 	than 7.34.0, or if you're running git-imap-send with the `--no-curl`

Documentation/git-imap-send.adoc

@@ -8,9 +8,9 @@ git-imap-send - Send a collection of patches from stdin to an IMAP folder
 
 SYNOPSIS
 --------
-[verse]
-'git imap-send' [-v] [-q] [--[no-]curl] [(--folder|-f) <folder>]
-'git imap-send' --list
+[synopsis]
+git imap-send [-v] [-q] [--[no-]curl] [(--folder|-f) <folder>]
+git imap-send --list
 
 
 DESCRIPTION
@@ -32,30 +32,30 @@ $ git format-patch --signoff --stdout --attach origin | git imap-send
 OPTIONS
 -------
 
--v::
---verbose::
+`-v`::
+`--verbose`::
 	Be verbose.
 
--q::
---quiet::
+`-q`::
+`--quiet`::
 	Be quiet.
 
--f <folder>::
---folder=<folder>::
+`-f <folder>`::
+`--folder=<folder>`::
 	Specify the folder in which the emails have to saved.
 	For example: `--folder=[Gmail]/Drafts` or `-f INBOX/Drafts`.
 
---curl::
+`--curl`::
 	Use libcurl to communicate with the IMAP server, unless tunneling
 	into it.  Ignored if Git was built without the USE_CURL_FOR_IMAP_SEND
 	option set.
 
---no-curl::
+`--no-curl`::
 	Talk to the IMAP server using git's own IMAP routines instead of
 	using libcurl.  Ignored if Git was built with the NO_OPENSSL option
 	set.
 
---list::
+`--list`::
 	Run the IMAP LIST command to output a list of all the folders present.
 
 CONFIGURATION