addressed comment

Author: tladendo

app/directives/history-graph/history-graph.directive.js

@@ -79,10 +79,10 @@
     var desktop = window.innerWidth >= 900 && true;
 
     $scope.promise.then(function(history) {
-      history.sort(function(lhs, rhs) {
-        lhs = moment(lhs.ratingDate);
-        rhs = moment(rhs.ratingDate);
-        return lhs > rhs ? 1 : lhs < rhs ? -1 : 0;
+      history.sort(function(left, right) {
+        left = moment(left.ratingDate);
+        right = moment(right.ratingDate);
+        return left > right ? 1 : left < right ? -1 : 0;
       })
       $scope.history = history;