chore(util.js): format

Author: Larry Botha

lib/util.js

@@ -1,13 +1,13 @@
 import {dequal as isEqual} from 'dequal/lite';
 
 function subscribeOnce(observable) {
-  return new Promise((resolve) => {
+  return new Promise(resolve => {
     observable.subscribe(resolve)(); // immediately invoke to unsubscribe
   });
 }
 
 function update(object, path, value) {
-  object.update((o) => {
+  object.update(o => {
     set(o, path, value);
     return o;
   });
@@ -46,7 +46,7 @@ function getErrorsFromSchema(initialValues, schema, errors = {}) {
         errors[key] = getErrorsFromSchema(
           initialValues[key],
           schema[key].fields,
-          Object.assign({}, errors[key]),
+	  {...errors[key]},
         );
         break;
       }
@@ -77,7 +77,7 @@ const deepEqual = isEqual;
 
 function assignDeep(object, value) {
   if (Array.isArray(object)) {
-    return object.map((o) => assignDeep(o, value));
+    return object.map(o => assignDeep(o, value));
   }
   const copy = {};
   for (const key in object) {