* nd/tag-doc: git-tag.txt: <commit> for --contains is optional
@ -103,8 +103,9 @@ OPTIONS
+
This option is only applicable when listing tags without annotation lines.
--contains <commit>::
Only list tags which contain the specified commit.
--contains [<commit>]::
Only list tags which contain the specified commit (HEAD if not
specified).
--points-at <object>::
Only list tags of the given object.