Codechange: Use null pointer literal instead of the NULL macro

src/script/script_config.hpp

@@ -61,10 +61,10 @@ protected:
 
 public:
 	ScriptConfig() :
-		name(NULL),
+		name(nullptr),
 		version(-1),
-		info(NULL),
-		config_list(NULL),
+		info(nullptr),
+		config_list(nullptr),
 		is_random(false)
 	{}
 
@@ -178,7 +178,7 @@ public:
 	 * Search a textfile file next to this script.
 	 * @param type The type of the textfile to search for.
 	 * @param slot #CompanyID to check status of.
-	 * @return The filename for the textfile, \c NULL otherwise.
+	 * @return The filename for the textfile, \c nullptr otherwise.
 	 */
 	const char *GetTextfile(TextfileType type, CompanyID slot) const;