clang-format: update to latest from docs repo

The openbmc/docs/style/cpp/.clang-format has been updated to support
clang-format10, take this opportunity to update it in this repo.

Change-Id: I9e6b9853bf4cd7399b1ae504ea3be5093d763fee
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/elog-errors.hpp b/elog-errors.hpp
index 2888f0d..aba1b6a 100644
--- a/elog-errors.hpp
+++ b/elog-errors.hpp
@@ -5,6 +5,7 @@
 #include <phosphor-logging/elog.hpp>
 #include <phosphor-logging/log.hpp>
 #include <sdbusplus/exception.hpp>
+
 #include <string>
 #include <tuple>
 #include <type_traits>