doc: more consistency in environment variables format

Wrap with backticks (monospaced font) unwrapped or single-quotes wrapped
(italic type) environment variables which are followed by the word
"environment". It was obtained with:

perl -pi -e "s/\'?(\\\$?[0-9A-Z\_]+)\'?(?= environment ?)/\`\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>

1 files changed, 1 insertions, 1 deletions

diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt
index 6843114fc0..a89c304916 100644
--- a/Documentation/git-config.txt
+++ b/Documentation/git-config.txt
@@ -269,7 +269,7 @@ and '--unset'. *'git config' will only ever change one file at a time*.
 
 You can override these rules either by command-line options or by environment
 variables. The '--global' and the '--system' options will limit the file used
-to the global or system-wide file respectively. The GIT_CONFIG environment
+to the global or system-wide file respectively. The `GIT_CONFIG` environment
 variable has a similar effect, but you can specify any filename you want.