Update clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I58738190d06bf216a13048d768aa4054d820d2e8
diff --git a/src/propertywatchimpl.hpp b/src/propertywatchimpl.hpp
index 0187bd1..ae0ed29 100644
--- a/src/propertywatchimpl.hpp
+++ b/src/propertywatchimpl.hpp
@@ -6,6 +6,7 @@
 
 #include <sdbusplus/bus/match.hpp>
 #include <sdbusplus/message.hpp>
+
 #include <string>
 #include <vector>