fix indentation & space

satisfy eslint

Author: thierryVergult

src/traces/sunburst/calc.js

@@ -192,8 +192,8 @@ exports.calc = function(gd, trace) {
     if(failed) return;
 
     // TODO add way to sort by height also?
-    if ( trace.sort) {
-      hierarchy.sort(function(a, b) { return b.value - a.value; });
+    if (trace.sort) {
+        hierarchy.sort(function(a, b) { return b.value - a.value; });
     }
 
     var pullColor;