Replace "exit" with "exit-x" to fix license metadata

Ref https://github.com/gruntjs/node-exit-x

Author: Krinkle

index.js

@@ -24,8 +24,8 @@ util.async = require('async');
 // Dont pollute other lodash: https://github.com/gruntjs/grunt-legacy-util/issues/17
 var _ = util._ = require('lodash').runInContext();
 var which = require('which').sync;
-// Instead of process.exit. See https://github.com/cowboy/node-exit
-util.exit = require('exit');
+// Instead of process.exit. See https://github.com/gruntjs/node-exit-x
+util.exit = require('exit-x');
 
 // Mixin Underscore.string methods.
 _.str = require('underscore.string');

package.json

@@ -25,7 +25,7 @@
   ],
   "dependencies": {
     "async": "~3.2.0",
-    "exit": "~0.1.2",
+    "exit-x": "~0.2.2",
     "getobject": "~1.0.0",
     "hooker": "~0.2.3",
     "lodash": "^4.18.0",