Apply the formatting specified in .clang-format file.

  $ clang-format --version
  clang-format version 7.0.0 (tags/google/stable/2018-01-11)
  $ clang-format -i --style=file $(find . -name '*.cpp' -o -name '*.h')
diff --git a/include/json/version.h b/include/json/version.h
index 06c6187..027f731 100644
--- a/include/json/version.h
+++ b/include/json/version.h
@@ -1,14 +1,16 @@
 // DO NOT EDIT. This file (and "version") is generated by CMake.
 // Run CMake configure step to update it.
 #ifndef JSON_VERSION_H_INCLUDED
-# define JSON_VERSION_H_INCLUDED
+#define JSON_VERSION_H_INCLUDED
 
-# define JSONCPP_VERSION_STRING "1.8.4"
-# define JSONCPP_VERSION_MAJOR 1
-# define JSONCPP_VERSION_MINOR 8
-# define JSONCPP_VERSION_PATCH 4
-# define JSONCPP_VERSION_QUALIFIER
-# define JSONCPP_VERSION_HEXA ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) | (JSONCPP_VERSION_PATCH << 8))
+#define JSONCPP_VERSION_STRING "1.8.4"
+#define JSONCPP_VERSION_MAJOR 1
+#define JSONCPP_VERSION_MINOR 8
+#define JSONCPP_VERSION_PATCH 4
+#define JSONCPP_VERSION_QUALIFIER
+#define JSONCPP_VERSION_HEXA                                                   \
+  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
+   (JSONCPP_VERSION_PATCH << 8))
 
 #ifdef JSONCPP_USING_SECURE_MEMORY
 #undef JSONCPP_USING_SECURE_MEMORY