unpack-trees(): "enable" sparse checkout and load $GIT_DIR/info/sparse-checkout

diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt
index 8b3971685a7b81f70a2c941e434b316acee1fa49..fc3f08b81c074b672433d840a082491477cedf13 100644 (file)
--- a/Documentation/git-read-tree.txt
+++ b/Documentation/git-read-tree.txt
@@ -401,7 +401,9 @@ follows:
 ----------------
 
 Then you can disable sparse checkout. Sparse checkout support in "git
-read-tree" and similar commands is disabled by default.
+read-tree" and similar commands is disabled by default. You need to
+turn `core.sparseCheckout` on in order to have sparse checkout
+support.
 
 
 SEE ALSO