style(influxdb): improve naming

public/app/plugins/datasource/influxdb/response_parser.ts

@@ -12,13 +12,13 @@ export default class ResponseParser {
       return [];
     }
 
-    var newInfluxdbFormat = query.toLowerCase().indexOf('show tag values') >= 0;
+    var influxdb11format = query.toLowerCase().indexOf('show tag values') >= 0;
 
     var res = {};
     _.each(influxResults.series, serie => {
       _.each(serie.values, value => {
         if (_.isArray(value)) {
-          if (newInfluxdbFormat) {
+          if (influxdb11format) {
             addUnique(res, value[1] || value[0]);
           } else {
             addUnique(res, value[0]);