Ran clang-format over all .h and .cpp files.

    clang-format -i $(find . -name '*.h' -or -name '*.cpp')
diff --git a/include/json/value.h b/include/json/value.h
index 3f8f211..7ff76d4 100644
--- a/include/json/value.h
+++ b/include/json/value.h
@@ -133,7 +133,7 @@
   typedef Json::LargestUInt LargestUInt;
   typedef Json::ArrayIndex ArrayIndex;
 
-  static const Value& null;
+  static const Value &null;
   /// Minimum signed integer value that can be stored in a Json::Value.
   static const LargestInt minLargestInt;
   /// Maximum signed integer value that can be stored in a Json::Value.