Update clang-format

refer: https://github.com/openbmc/docs/blob/master/style/cpp/.clang-format

Tested: built openpower-occ-control successfully.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I136870023229ff906d471dd4d8debfd404812ff1
diff --git a/test/utest.cpp b/test/utest.cpp
index 704c5c6..2933023 100644
--- a/test/utest.cpp
+++ b/test/utest.cpp
@@ -1,10 +1,11 @@
 #include "powercap.hpp"
 #include "utils.hpp"
 
-#include <experimental/filesystem>
 #include <occ_events.hpp>
 #include <occ_manager.hpp>
 
+#include <experimental/filesystem>
+
 #include <gtest/gtest.h>
 
 using namespace open_power::occ;
@@ -21,8 +22,7 @@
         event = nullptr;
     }
     ~VerifyOccInput()
-    {
-    }
+    {}
 
     sd_event* event;
     int rc;