Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
Oops, bogus indentation in the first 3/2
Documentation/git-update-index.txt | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-update-index.txt
b/Documentation/git-update-index.txt
index 77a912d..dbb75f4 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -145,7 +145,14 @@ you will need to handle the situation manually.
--index-version <n>::
Write the resulting index out in the named on-disk format version.
- The current default version is 2.
+ Supported versions are 2, 3 and 4. The current default version is 2
+ or 3, depending on whether extra features are used, such as
+ `git add -N`.
++
+Version 4 performs a simple pathname compression that could reduce
+index size by 30%-50% on large repositories, which results in faster
+load time. Version 4 is relatively young (first released in in 1.8.0
+in October 2012). Other Git implementations may not support it yet.
-z::
Only meaningful with `--stdin` or `--index-info`; paths are
--
1.8.1.2.536.gf441e6d
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