update-index: document --stdin and -z

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 8d55659..0d9847c 100644 (file)
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -1,6 +1,5 @@
 git-update-index(1)
 ===================
-v0.1, May 2005
 
 NAME
 ----
@@ -15,6 +14,7 @@ SYNOPSIS
             [--force-remove]
             [--cacheinfo <mode> <object> <file>]\*
             [--info-only]
+            [-z] [--stdin]
             [--] [<file>]\*
 
 DESCRIPTION
@@ -65,6 +65,15 @@ OPTIONS
        that conflicts with the entry being added are
        automatically removed with warning messages.
 
+--stdin::
+       Instead of taking list of paths from the command line,
+       read list of paths from the standard input.  Paths are
+       separated by LF (i.e. one path per line) by default.
+
+-z::
+       Only meaningful with `--stdin`; paths are separated with
+       NUL character instead of LF.
+
 --::
        Do not interpret any more arguments as options.