Turn on lexical-binding in json.el

Measuring with (benchmark-run 100 (json-read-file "foobar.json"))
showed 12-31% reduction in execution time.
* lisp/json.el: Turn on lexical-binding.

diff --git a/lisp/json.el b/lisp/json.el
index 1eabe0fa33c288042a21fb8f8c9000ada5ad9827..fdac8d9a826f3734da0ea09011cdf90109af3949 100644 (file)
--- a/lisp/json.el
+++ b/lisp/json.el
@@ -1,4 +1,4 @@
-;;; json.el --- JavaScript Object Notation parser / generator
+;;; json.el --- JavaScript Object Notation parser / generator -*- lexical-binding: t -*-
 
 ;; Copyright (C) 2006-2016 Free Software Foundation, Inc.