use strict for let support

scniro · scniro · commit b701c36d82e3 · 2017-05-07T18:50:44.000-04:00
diff --git a/index.js b/index.js
@@ -1,3 +1,5 @@
+'use strict';
+
 const applySourceMap = require('vinyl-sourcemaps-apply');
 const CleanCSS = require('clean-css');
 const path = require('path');

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+'use strict';`
	`2`	`+`
`1`	`3`	`const applySourceMap = require('vinyl-sourcemaps-apply');`
`2`	`4`	`const CleanCSS = require('clean-css');`
`3`	`5`	`const path = require('path');`