nicer variable names

lib/emitters/custom-event-emitter.js

@@ -36,8 +36,8 @@ module.exports = (function() {
   CustomEventEmitter.prototype.done =
   CustomEventEmitter.prototype.done =
   CustomEventEmitter.prototype.complete =
   CustomEventEmitter.prototype.complete =
   function(fct) {
   function(fct) {
-    this.on('failure', function(d){ fct(d, null) })
-        .on('success', function(d){ fct(null, d) })
+    this.on('failure', function(err) { fct(err, null) })
+        .on('success', function(result) { fct(null, result) })
     return this
     return this
   }
   }