Update clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I58738190d06bf216a13048d768aa4054d820d2e8
diff --git a/src/test/propertywatchtest.hpp b/src/test/propertywatchtest.hpp
index e27ba18..6fcf45f 100644
--- a/src/test/propertywatchtest.hpp
+++ b/src/test/propertywatchtest.hpp
@@ -295,8 +295,7 @@
  */
 template <typename T>
 struct Expect
-{
-};
+{};
 
 template <>
 struct Expect<uint64_t>