From a2fd8d37548d60163f2e170aa2dc96e98c08fd0f Mon Sep 17 00:00:00 2001
From: Cheerego <35982308+shanyi15@users.noreply.github.com>
Date: Tue, 19 Feb 2019 21:46:07 +0800
Subject: [PATCH] update_book_commit_id_1.2 (#635)

---
 external/book | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/book b/external/book
index d233b2094..748fa6eeb 160000
--- a/external/book
+++ b/external/book
@@ -1 +1 @@
-Subproject commit d233b20945bc22a220ffd05b74dbe47bdae69007
+Subproject commit 748fa6eeb12d43cc906afb4aeb58273c1835f634
-- 
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