Use jsesc for proper escaping.

Use @mathias https://github.com/mathiasbynens/jsesc package to perform
the proper escaping of special characters.

Author: bmeurer

index.js

@@ -2,11 +2,12 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
+const jsesc = require('jsesc');
+
 module.exports = function(content) {
 	this.cacheable && this.cacheable();
 	this.value = content;
-	content = JSON.stringify(content)
-		.replace(/\u2028/g, '\\u2028')
-		.replace(/\u2029/g, '\\u2029');
-	return `module.exports = ${content}`;
+	content = JSON.stringify(content);
+	content = jsesc(content);
+	return 'module.exports = ' + content;
 }

package.json

@@ -7,5 +7,8 @@
 		"type": "git",
 		"url": "git@github.com:webpack/raw-loader.git"
 	},
-	"license": "MIT"
+	"license": "MIT",
+	"dependencies": {
+		"jsesc": "^2.5.1"
+	}
 }