[vim] Update rust.vim to use rust-lang/rust.vim
change
commit 5cabe5a91e14edd2b7b8ee12412be0067a127362
author Alpha Chen <alpha.chen@gmail.com>
date
parent 2cf699b4 
diff --git a/.vim/bundle/rust.vim b/.vim/bundle/rust.vim
index 2450ecf3..99242777 160000
--- a/.vim/bundle/rust.vim
+++ b/.vim/bundle/rust.vim
@@ -1 +1 @@
-Subproject commit 2450ecf3091cc7c2711ca9f00eae8e3bedd04376
+Subproject commit 99242777d79432f894f0357410fafa455a91c351