clang-format: update to latest from docs repo

Since `Cpp11` is an alias for `Latest` and we should tend towards using the
latest C++ standard, udpate the C++ standard to Latest.

https://github.com/llvm/llvm-project/commit/e5032567903de19962333c4bf7d2edceaf4f9824#diff-b49a097415dff2837d9626d422c58ba8R82
https://github.com/openbmc/docs/blob/master/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Iaac09e3c11ead581114c4b7e45ff863ec56a63f6
diff --git a/manager.hpp b/manager.hpp
index 2c79a2f..0cc5cf6 100644
--- a/manager.hpp
+++ b/manager.hpp
@@ -2,8 +2,9 @@
 
 #include "ledlayout.hpp"
 
-#include <map>
 #include <sdbusplus/bus.hpp>
+
+#include <map>
 #include <set>
 #include <string>