fix: use with module bundlers

Author: analog-nico

lib/rp.js

@@ -2,12 +2,14 @@
 
 var Bluebird = require('bluebird'),
     configure = require('@request/promise-core/configure/request2'),
-    stealthyRequire = require('stealthy-require')(require);
+    stealthyRequire = require('stealthy-require');
 
 try {
 
     // Load Request freshly - so that users can require an unaltered request instance!
-    var request = stealthyRequire('request');
+    var request = stealthyRequire(require.cache, function () {
+        return require('request');
+    });
 
 } catch (err) {
     /* istanbul ignore next */

package.json

@@ -35,7 +35,7 @@
   "dependencies": {
     "@request/promise-core": "1.0.0",
     "bluebird": "^3.4.1",
-    "stealthy-require": "^0.1.0"
+    "stealthy-require": "^1.0.0"
   },
   "peerDependencies": {
     "request": "^2.34"