update .clang-format

Added the header inclusion order to the .clang-format file generated
these changes.

Change-Id: I4f51a20f469de431ee6a5ba78e3f4da39c980fab
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/src/pathwatch.hpp b/src/pathwatch.hpp
index db81bec..b0b8b42 100644
--- a/src/pathwatch.hpp
+++ b/src/pathwatch.hpp
@@ -22,7 +22,8 @@
 /** @class PathWatch
  *  @brief Watch on object path for interfaceadded/interfaceremoved signals
  */
-template <typename DBusInterfaceType> class PathWatch : public Watch
+template <typename DBusInterfaceType>
+class PathWatch : public Watch
 {
   public:
     PathWatch() = delete;