Remove outdated __proto__ workaround.

Signed-off-by: Eric Wang <[email protected]>

Author: skygragon

lib/chalk.js

@@ -41,7 +41,7 @@ chalk.wrap = function(pre, post) {
   var f = function(s) {
     return chalk.print(s);
   };
-  f.__proto__ = chalk;
+  Object.setPrototypeOf(f, chalk);
   return f;
 };
 

lib/plugin.js

@@ -21,7 +21,8 @@ Plugin.prototype.init = function() {
 };
 
 Plugin.prototype.setNext = function(next) {
-  this.next = this.__proto__ = next;
+  Object.setPrototypeOf(this, next);
+  this.next = next;
 };
 
 Plugin.plugins = [];