Adjust quoting styles for some environment variables in the documentation.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git.txt b/Documentation/git.txt
index a02ed6f..98d923d 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -288,8 +288,8 @@ git Commits
 
 git Diffs
 ~~~~~~~~~
-GIT_DIFF_OPTS::
-GIT_EXTERNAL_DIFF::
+'GIT_DIFF_OPTS'::
+'GIT_EXTERNAL_DIFF'::
        see the "generating patches" section in :
        link:git-diff-cache.html[git-diff-cache];
        link:git-diff-files.html[git-diff-files];