Rename param

lib/cartodb/models/aggregation/aggregation-validator.js

@@ -1,13 +1,13 @@
 module.exports = function aggregationValidator (mapconfig) {
-    return function validateProperty (prop, validator) {
+    return function validateProperty (key, validator) {
         for (let index = 0; index < mapconfig.getLayers().length; index++) {
             const aggregation = mapconfig.getAggregation(index);
 
-            if (aggregation === undefined || aggregation[prop] === undefined) {
+            if (aggregation === undefined || aggregation[key] === undefined) {
                 continue;
             }
 
-            validator(aggregation[prop], prop, index);
+            validator(aggregation[key], key, index);
         }
     };
 };