doc: fix minor typos (extra/duplicated words)

diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 1579abf3c3b45f4e63f8f17746dde31a06a3a564..a14e6aebd9dc8e3b523b4145236fc413e00d4492 100644 (file)
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -153,7 +153,7 @@ you will need to handle the situation manually.
 +
 Version 4 performs a simple pathname compression that reduces 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
+time. Version 4 is relatively young (first released in 1.8.0 in
 October 2012). Other Git implementations such as JGit and libgit2
 may not support it yet.