add .clang-format

Change-Id: I6627b5569c2e0f730be7331403218b823a2c622f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/pid/util.hpp b/pid/util.hpp
index eb6e713..0f37afe 100644
--- a/pid/util.hpp
+++ b/pid/util.hpp
@@ -2,11 +2,10 @@
 
 #include "ec/pid.hpp"
 
-
 /*
  * Given a configuration structure, fill out the information we use within the
  * PID loop.
  */
 void InitializePIDStruct(ec::pid_info_t* info, ec::pidinfo* initial);
 
-void DumpPIDStruct(ec::pid_info_t *info);
+void DumpPIDStruct(ec::pid_info_t* info);