style: update clang-format

Pull the most recent OpenBMC style rules and run clang-format.

Change-Id: I11a25ea1e62d6c739010d9dd742a139fb17cc09a
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/test/test.cpp b/test/test.cpp
index cea8b89..e7058be 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -113,8 +113,7 @@
     explicit SignalQueue(const std::string& match) :
         _bus(sdbusplus::bus::new_default()),
         _match(_bus, match.c_str(), &callback, this), _next(nullptr)
-    {
-    }
+    {}
 
     auto&& pop(unsigned timeout = 1000000)
     {