Add quotes around INIT action type in error

Author: markerikson

errors.json

@@ -12,7 +12,7 @@
   "10": "Expected the nextReducer to be a function. Instead, received: '",
   "11": "Expected the observer to be an object. Instead, received: ''",
   "12": "The slice reducer for key \"\" returned undefined during initialization. If the state passed to the reducer is undefined, you must explicitly return the initial state. The initial state may not be undefined. If you don't want to set a value for this reducer, you can use null instead of undefined.",
-  "13": "The slice reducer for key \"\" returned undefined when probed with a random type. Don't try to handle  or other actions in \"redux/*\" namespace. They are considered private. Instead, you must return the current state for any unknown actions, unless it is undefined, in which case you must return the initial state, regardless of the action type. The initial state may not be undefined, but can be null.",
+  "13": "The slice reducer for key \"\" returned undefined when probed with a random type. Don't try to handle '' or other actions in \"redux/*\" namespace. They are considered private. Instead, you must return the current state for any unknown actions, unless it is undefined, in which case you must return the initial state, regardless of the action type. The initial state may not be undefined, but can be null.",
   "14": "When called with an action of type , the slice reducer for key \"\" returned undefined. To ignore an action, you must explicitly return the previous state. If you want this reducer to hold no value, you can return null instead of undefined.",
   "15": "Dispatching while constructing your middleware is not allowed. Other middleware would not be applied to this dispatch.",
   "16": "bindActionCreators expected an object or a function, but instead received: ''. Did you write \"import ActionCreators from\" instead of \"import * as ActionCreators from\"?"

src/combineReducers.ts

@@ -82,7 +82,7 @@ function assertReducerShape(reducers: ReducersMapObject) {
     ) {
       throw new Error(
         `The slice reducer for key "${key}" returned undefined when probed with a random type. ` +
-          `Don't try to handle ${ActionTypes.INIT} or other actions in "redux/*" ` +
+          `Don't try to handle '${ActionTypes.INIT}' or other actions in "redux/*" ` +
           `namespace. They are considered private. Instead, you must return the ` +
           `current state for any unknown actions, unless it is undefined, ` +
           `in which case you must return the initial state, regardless of the ` +

src/createStore.ts

@@ -114,7 +114,7 @@ export default function createStore<
   let isDispatching = false
 
   /**
-   * This makes a shallow copy of currentListeners so can use
+   * This makes a shallow copy of currentListeners so we can use
    * nextListeners as a temporary list while dispatching.
    *
    * This prevents any bugs around consumers calling