Use strict mode to allow block scoping (#13)

Christian Howe · yoshuawuyts · commit 9262d4282283 · 2017-09-29T12:34:39.000+02:00
diff --git a/index.js b/index.js
@@ -1,3 +1,5 @@
+'use strict';
+
 const postcss = require('postcss')
 const Selector = require('postcss-selector-parser')
 

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+'use strict';`
	`2`	`+`
`1`	`3`	`const postcss = require('postcss')`
`2`	`4`	`const Selector = require('postcss-selector-parser')`
`3`	`5`