Reference git-commit-tree for env vars.

diff --git a/Documentation/hooks.txt b/Documentation/hooks.txt
index c324e17db090fdd1f76750d537fb002f810b994c..4ad1920ec10cf4b7733ebeae1424f003cc3fe9eb 100644 (file)
--- a/Documentation/hooks.txt
+++ b/Documentation/hooks.txt
@@ -1,4 +1,4 @@
-Hooks used by GIT
+Hooks used by git
 =================
 
 Hooks are little scripts you can place in `$GIT_DIR/hooks`
@@ -111,6 +111,10 @@ Another use suggested on the mailing list is to use this hook to
 implement access control which is finer grained than the one
 based on filesystem group.
 
+The standard output of this hook is sent to /dev/null; if you
+want to report something to the git-send-pack on the other end,
+you can redirect your output to your stderr.
+
 post-update
 -----------
 
@@ -125,3 +129,7 @@ the outcome of `git-receive-pack`.
 The default post-update hook, when enabled, runs
 `git-update-server-info` to keep the information used by dumb
 transport up-to-date.
+
+The standard output of this hook is sent to /dev/null; if you
+want to report something to the git-send-pack on the other end,
+you can redirect your output to your stderr.