Sync with maint
* maint:
Documentation/git-update-index: add missing opts to synopsis
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 3df9c26..f4e5a85 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -17,6 +17,7 @@
[--[no-]assume-unchanged]
[--[no-]skip-worktree]
[--ignore-submodules]
+ [--[no-]split-index]
[--[no-|force-]untracked-cache]
[--really-refresh] [--unresolve] [--again | -g]
[--info-only] [--index-info]