X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=Documentation%2Fgit-write-tree.txt;h=c85fa89c30e25ed026d2e95a2b537798f878e50f;hb=HEAD;hp=abee05f6f53fe38b77caf9a19194c6f0990690bd;hpb=302ebfe52192fff9a2c1c612dff22325fd073acc;p=git.git

diff --git a/Documentation/git-write-tree.txt b/Documentation/git-write-tree.txt
index abee05f6..c85fa89c 100644
--- a/Documentation/git-write-tree.txt
+++ b/Documentation/git-write-tree.txt
@@ -8,25 +8,33 @@ git-write-tree - Creates a tree object from the current index
 
 SYNOPSIS
 --------
-'git-write-tree' [--missing-ok]
+'git-write-tree' [--missing-ok] [--prefix=<prefix>/]
 
 DESCRIPTION
 -----------
 Creates a tree object using the current index.
 
-The index must be merged.
+The index must be in a fully merged state.
 
-Conceptually, "git-write-tree" sync()s the current index contents
+Conceptually, `git-write-tree` sync()s the current index contents
 into a set of tree files.
 In order to have that match what is actually in your directory right
-now, you need to have done a "git-update-index" phase before you did the
-"git-write-tree".
+now, you need to have done a `git-update-index` phase before you did the
+`git-write-tree`.
+
 
 OPTIONS
 -------
 --missing-ok::
-	Normally "git-write-tree" ensures that the objects referenced by the
-	directory exist in the object database.  This option disables this check.
+	Normally `git-write-tree` ensures that the objects referenced by the
+	directory exist in the object database.  This option disables this
+	check.
+
+--prefix=<prefix>/::
+	Writes a tree object that represents a subdirectory
+	`<prefix>`.  This can be used to write the tree object
+	for a subproject that is in the named subdirectory.
+
 
 Author
 ------