Update clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I58738190d06bf216a13048d768aa4054d820d2e8
diff --git a/src/snmp_trap.hpp b/src/snmp_trap.hpp
index 4555e65..34169b8 100644
--- a/src/snmp_trap.hpp
+++ b/src/snmp_trap.hpp
@@ -57,15 +57,13 @@
     SNMPTrap& operator=(SNMPTrap&&) = default;
     virtual ~SNMPTrap() = default;
     SNMPTrap() : Callback()
-    {
-    }
+    {}
 
     /** @brief Callback interface implementation.
      *  @param[in] ctc - context.
      */
     void operator()(Context ctx)
-    {
-    }
+    {}
 
     /** @brief Callback interface implementation.
      *  @param[in] ctc - context.