doc: more consistency in environment variables format

diff --git a/Documentation/git-help.txt b/Documentation/git-help.txt
index 3956525218bf45f2968fe2039e4dfb75a6f2222b..679d5397b365269af6975b70562129f13bb6b090 100644 (file)
--- a/Documentation/git-help.txt
+++ b/Documentation/git-help.txt
@@ -128,7 +128,7 @@ will try to use konqueror first. But this may fail (for example, if
 DISPLAY is not set) and in that case emacs' woman mode will be tried.
 
 If everything fails, or if no viewer is configured, the viewer specified
-in the GIT_MAN_VIEWER environment variable will be tried.  If that
+in the `GIT_MAN_VIEWER` environment variable will be tried.  If that
 fails too, the 'man' program will be tried anyway.
 
 man.<tool>.path