doc: change environment variables format

This change GIT_* variables that where in italic style to monospaced font
according to the guideline. It was obtained with

	perl -pi -e "s/\'(GIT_.*?)\'/\`\1\`/g" *.txt

One of the main purposes is to stick to the CodingGuidelines as possible so
that people writting new documentation by mimicking the existing are more likely
to have it right (even if they didn't read the CodingGuidelines).

Signed-off-by: Tom Russello <tom.russello@grenoble-inp.org>
Signed-off-by: Erwan Mathoniere <erwan.mathoniere@grenoble-inp.org>
Signed-off-by: Samuel Groot <samuel.groot@grenoble-inp.org>
Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/config.txt

@@ -434,7 +434,7 @@ core.gitProxy::
 	may be set multiple times and is matched in the given order;
 	the first match wins.
 +
-Can be overridden by the 'GIT_PROXY_COMMAND' environment variable
+Can be overridden by the `GIT_PROXY_COMMAND` environment variable
 (which always applies universally, without the special "for"
 handling).
 +
@@ -619,7 +619,7 @@ core.excludesFile::
 core.askPass::
 	Some commands (e.g. svn and http interfaces) that interactively
 	ask for a password can be told to use an external program given
-	via the value of this variable. Can be overridden by the 'GIT_ASKPASS'
+	via the value of this variable. Can be overridden by the `GIT_ASKPASS`
 	environment variable. If not set, fall back to the value of the
 	'SSH_ASKPASS' environment variable or, failing that, a simple password
 	prompt. The external program shall be given a suitable prompt as
@@ -747,7 +747,7 @@ core.notesRef::
 	notes should be printed.
 +
 This setting defaults to "refs/notes/commits", and it can be overridden by
-the 'GIT_NOTES_REF' environment variable.  See linkgit:git-notes[1].
+the `GIT_NOTES_REF` environment variable.  See linkgit:git-notes[1].
 
 core.sparseCheckout::
 	Enable "sparse checkout" feature. See section "Sparse checkout" in
@@ -783,7 +783,7 @@ it will be treated as a shell command.  For example, defining
 "gitk --all --not ORIG_HEAD".  Note that shell commands will be
 executed from the top-level directory of a repository, which may
 not necessarily be the current directory.
-'GIT_PREFIX' is set as returned by running 'git rev-parse --show-prefix'
+`GIT_PREFIX` is set as returned by running 'git rev-parse --show-prefix'
 from the original current directory. See linkgit:git-rev-parse[1].
 
 am.keepcr::
@@ -1561,7 +1561,7 @@ guitool.<name>.cmd::
 	of the linkgit:git-gui[1] `Tools` menu is invoked. This option is
 	mandatory for every tool. The command is executed from the root of
 	the working directory, and in the environment it receives the name of
-	the tool as 'GIT_GUITOOL', the name of the currently selected file as
+	the tool as `GIT_GUITOOL`, the name of the currently selected file as
 	'FILENAME', and the name of the current branch as 'CUR_BRANCH' (if
 	the head is detached, 'CUR_BRANCH' is empty).
 
@@ -1646,7 +1646,7 @@ http.proxyAuthMethod::
 	only takes effect if the configured proxy string contains a user name part
 	(i.e. is of the form 'user@host' or 'user@host:port'). This can be
 	overridden on a per-remote basis; see `remote.<name>.proxyAuthMethod`.
-	Both can be overridden by the 'GIT_HTTP_PROXY_AUTHMETHOD' environment
+	Both can be overridden by the `GIT_HTTP_PROXY_AUTHMETHOD` environment
 	variable.  Possible values are:
 +
 --
@@ -1699,9 +1699,9 @@ http.sslVersion::
 	- tlsv1.2
 
 +
-Can be overridden by the 'GIT_SSL_VERSION' environment variable.
+Can be overridden by the `GIT_SSL_VERSION` environment variable.
 To force git to use libcurl's default ssl version and ignore any
-explicit http.sslversion option, set 'GIT_SSL_VERSION' to the
+explicit http.sslversion option, set `GIT_SSL_VERSION` to the
 empty string.
 
 http.sslCipherList::
@@ -1712,41 +1712,41 @@ http.sslCipherList::
   option; see the libcurl documentation for more details on the format
   of this list.
 +
-Can be overridden by the 'GIT_SSL_CIPHER_LIST' environment variable.
+Can be overridden by the `GIT_SSL_CIPHER_LIST` environment variable.
 To force git to use libcurl's default cipher list and ignore any
-explicit http.sslCipherList option, set 'GIT_SSL_CIPHER_LIST' to the
+explicit http.sslCipherList option, set `GIT_SSL_CIPHER_LIST` to the
 empty string.
 
 http.sslVerify::
 	Whether to verify the SSL certificate when fetching or pushing
-	over HTTPS. Can be overridden by the 'GIT_SSL_NO_VERIFY' environment
+	over HTTPS. Can be overridden by the `GIT_SSL_NO_VERIFY` environment
 	variable.
 
 http.sslCert::
 	File containing the SSL certificate when fetching or pushing
-	over HTTPS. Can be overridden by the 'GIT_SSL_CERT' environment
+	over HTTPS. Can be overridden by the `GIT_SSL_CERT` environment
 	variable.
 
 http.sslKey::
 	File containing the SSL private key when fetching or pushing
-	over HTTPS. Can be overridden by the 'GIT_SSL_KEY' environment
+	over HTTPS. Can be overridden by the `GIT_SSL_KEY` environment
 	variable.
 
 http.sslCertPasswordProtected::
 	Enable Git's password prompt for the SSL certificate.  Otherwise
 	OpenSSL will prompt the user, possibly many times, if the
 	certificate or private key is encrypted.  Can be overridden by the
-	'GIT_SSL_CERT_PASSWORD_PROTECTED' environment variable.
+	`GIT_SSL_CERT_PASSWORD_PROTECTED` environment variable.
 
 http.sslCAInfo::
 	File containing the certificates to verify the peer with when
 	fetching or pushing over HTTPS. Can be overridden by the
-	'GIT_SSL_CAINFO' environment variable.
+	`GIT_SSL_CAINFO` environment variable.
 
 http.sslCAPath::
 	Path containing files with the CA certificates to verify the peer
 	with when fetching or pushing over HTTPS. Can be overridden
-	by the 'GIT_SSL_CAPATH' environment variable.
+	by the `GIT_SSL_CAPATH` environment variable.
 
 http.pinnedpubkey::
 	Public key of the https service. It may either be the filename of
@@ -1766,7 +1766,7 @@ http.sslTry::
 
 http.maxRequests::
 	How many HTTP requests to launch in parallel. Can be overridden
-	by the 'GIT_HTTP_MAX_REQUESTS' environment variable. Default is 5.
+	by the `GIT_HTTP_MAX_REQUESTS` environment variable. Default is 5.
 
 http.minSessions::
 	The number of curl sessions (counted across slots) to be kept across
@@ -1785,13 +1785,13 @@ http.postBuffer::
 http.lowSpeedLimit, http.lowSpeedTime::
 	If the HTTP transfer speed is less than 'http.lowSpeedLimit'
 	for longer than 'http.lowSpeedTime' seconds, the transfer is aborted.
-	Can be overridden by the 'GIT_HTTP_LOW_SPEED_LIMIT' and
-	'GIT_HTTP_LOW_SPEED_TIME' environment variables.
+	Can be overridden by the `GIT_HTTP_LOW_SPEED_LIMIT` and
+	`GIT_HTTP_LOW_SPEED_TIME` environment variables.
 
 http.noEPSV::
 	A boolean which disables using of EPSV ftp command by curl.
 	This can helpful with some "poor" ftp servers which don't
-	support EPSV mode. Can be overridden by the 'GIT_CURL_FTP_NO_EPSV'
+	support EPSV mode. Can be overridden by the `GIT_CURL_FTP_NO_EPSV`
 	environment variable. Default is false (curl will use EPSV).
 
 http.userAgent::
@@ -1801,7 +1801,7 @@ http.userAgent::
 	such as Mozilla/4.0.  This may be necessary, for instance, if
 	connecting through a firewall that restricts HTTP connections to a set
 	of common USER_AGENT strings (but not including those like git/1.7.1).
-	Can be overridden by the 'GIT_HTTP_USER_AGENT' environment variable.
+	Can be overridden by the `GIT_HTTP_USER_AGENT` environment variable.
 
 http.<url>.*::
 	Any of the http.* options above can be applied selectively to some URLs.
@@ -2855,12 +2855,12 @@ url.<base>.pushInsteadOf::
 
 user.email::
 	Your email address to be recorded in any newly created commits.
-	Can be overridden by the 'GIT_AUTHOR_EMAIL', 'GIT_COMMITTER_EMAIL', and
+	Can be overridden by the `GIT_AUTHOR_EMAIL`, `GIT_COMMITTER_EMAIL`, and
 	'EMAIL' environment variables.  See linkgit:git-commit-tree[1].
 
 user.name::
 	Your full name to be recorded in any newly created commits.
-	Can be overridden by the 'GIT_AUTHOR_NAME' and 'GIT_COMMITTER_NAME'
+	Can be overridden by the `GIT_AUTHOR_NAME` and `GIT_COMMITTER_NAME`
 	environment variables.  See linkgit:git-commit-tree[1].
 
 user.useConfigOnly::

Documentation/git-log.txt

@@ -201,7 +201,7 @@ mailmap.*::
 
 notes.displayRef::
 	Which refs, in addition to the default set by `core.notesRef`
-	or 'GIT_NOTES_REF', to read notes from when showing commit
+	or `GIT_NOTES_REF`, to read notes from when showing commit
 	messages with the `log` family of commands.  See
 	linkgit:git-notes[1].
 +
@@ -210,7 +210,7 @@ multiple times.  A warning will be issued for refs that do not exist,
 but a glob that does not match any refs is silently ignored.
 +
 This setting can be disabled by the `--no-notes` option,
-overridden by the 'GIT_NOTES_DISPLAY_REF' environment variable,
+overridden by the `GIT_NOTES_DISPLAY_REF` environment variable,
 and overridden by the `--notes=<ref>` option.
 
 GIT

Documentation/git-notes.txt

@@ -161,7 +161,7 @@ OPTIONS
 
 --ref <ref>::
 	Manipulate the notes tree in <ref>.  This overrides
-	'GIT_NOTES_REF' and the "core.notesRef" configuration.  The ref
+	`GIT_NOTES_REF` and the "core.notesRef" configuration.  The ref
 	specifies the full refname when it begins with `refs/notes/`; when it
 	begins with `notes/`, `refs/` and otherwise `refs/notes/` is prefixed
 	to form a full name of the ref.
@@ -333,10 +333,10 @@ notes.<name>.mergeStrategy::
 notes.displayRef::
 	Which ref (or refs, if a glob or specified more than once), in
 	addition to the default set by `core.notesRef` or
-	'GIT_NOTES_REF', to read notes from when showing commit
+	`GIT_NOTES_REF`, to read notes from when showing commit
 	messages with the 'git log' family of commands.
 	This setting can be overridden on the command line or by the
-	'GIT_NOTES_DISPLAY_REF' environment variable.
+	`GIT_NOTES_DISPLAY_REF` environment variable.
 	See linkgit:git-log[1].
 
 notes.rewrite.<command>::
@@ -345,7 +345,7 @@ notes.rewrite.<command>::
 	notes from the original to the rewritten commit.  Defaults to
 	`true`.  See also "`notes.rewriteRef`" below.
 +
-This setting can be overridden by the 'GIT_NOTES_REWRITE_REF'
+This setting can be overridden by the `GIT_NOTES_REWRITE_REF`
 environment variable.
 
 notes.rewriteMode::
@@ -366,33 +366,33 @@ notes.rewriteRef::
 Does not have a default value; you must configure this variable to
 enable note rewriting.
 +
-Can be overridden with the 'GIT_NOTES_REWRITE_REF' environment variable.
+Can be overridden with the `GIT_NOTES_REWRITE_REF` environment variable.
 
 
 ENVIRONMENT
 -----------
 
-'GIT_NOTES_REF'::
+`GIT_NOTES_REF`::
 	Which ref to manipulate notes from, instead of `refs/notes/commits`.
 	This overrides the `core.notesRef` setting.
 
-'GIT_NOTES_DISPLAY_REF'::
+`GIT_NOTES_DISPLAY_REF`::
 	Colon-delimited list of refs or globs indicating which refs,
 	in addition to the default from `core.notesRef` or
-	'GIT_NOTES_REF', to read notes from when showing commit
+	`GIT_NOTES_REF`, to read notes from when showing commit
 	messages.
 	This overrides the `notes.displayRef` setting.
 +
 A warning will be issued for refs that do not exist, but a glob that
 does not match any refs is silently ignored.
 
-'GIT_NOTES_REWRITE_MODE'::
+`GIT_NOTES_REWRITE_MODE`::
 	When copying notes during a rewrite, what to do if the target
 	commit already has a note.
 	Must be one of `overwrite`, `concatenate`, `cat_sort_uniq`, or `ignore`.
 	This overrides the `core.rewriteMode` setting.
 
-'GIT_NOTES_REWRITE_REF'::
+`GIT_NOTES_REWRITE_REF`::
 	When rewriting commits, which notes to copy from the original
 	to the rewritten commit.  Must be a colon-delimited list of
 	refs or globs.

Documentation/git-p4.txt

@@ -166,7 +166,7 @@ General options
 All commands except clone accept these options.
 
 --git-dir <dir>::
-	Set the 'GIT_DIR' environment variable.  See linkgit:git[1].
+	Set the `GIT_DIR` environment variable.  See linkgit:git[1].
 
 -v::
 --verbose::

Documentation/git-replace.txt

@@ -51,7 +51,7 @@ $ git cat-file commit foo
 
 shows information about commit 'bar'.
 
-The 'GIT_NO_REPLACE_OBJECTS' environment variable can be set to
+The `GIT_NO_REPLACE_OBJECTS` environment variable can be set to
 achieve the same effect as the `--no-replace-objects` option.
 
 OPTIONS