Documentation/diff-index: mention two modes of operation

diff --git a/Documentation/gitrepository-layout.txt b/Documentation/gitrepository-layout.txt
index f0eef765b96284fe42915bea18ea5fa6073d0dfe..2ad09f4baf2bef3fc0b44de510d17c1f912c60cd 100644 (file)
--- a/Documentation/gitrepository-layout.txt
+++ b/Documentation/gitrepository-layout.txt
@@ -106,7 +106,7 @@ refs/remotes/`name`::
        from a remote repository.
 
 refs/replace/`<obj-sha1>`::
-       records the SHA1 of the object that replaces `<obj-sha1>`.
+       records the SHA-1 of the object that replaces `<obj-sha1>`.
        This is similar to info/grafts and is internally used and
        maintained by linkgit:git-replace[1]. Such refs can be exchanged
        between repositories while grafts are not.