Update transports.js

Author: acrazing

lib/winston/transports.js

@@ -7,21 +7,29 @@
  */
 
 Object.defineProperty(exports, 'Console', {
+  configurable: true,
+  enumerable: true,
   get: function () {
     return require('./transports/console')
   }
 });
 Object.defineProperty(exports, 'File', {
+  configurable: true,
+  enumerable: true,
   get: function () {
     return require('./transports/file');
   }
 });
 Object.defineProperty(exports, 'Http', {
+  configurable: true,
+  enumerable: true,
   get: function () {
     return require('./transports/http');
   }
 });
 Object.defineProperty(exports, 'Memory', {
+  configurable: true,
+  enumerable: true,
   get: function () {
     return require('./transports/memory');
   }