doc: typeset HEAD and variants as literal

diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 499df56703b255eadca56c2fb8deff99ce4ca487..dfd6b27682ff87fcf960a3f6f7dff0051d2b958f 100644 (file)
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -167,7 +167,7 @@ This option is only applicable when listing tags without annotation lines.
 
 --[no-]merged [<commit>]::
        Only list tags whose tips are reachable, or not reachable
-       if `--no-merged` is used, from the specified commit ('HEAD'
+       if `--no-merged` is used, from the specified commit (`HEAD`
        if not specified).
 
 CONFIGURATION