Incorrect token in JsonParserException

When I do the following:

```java
JsonParser.object().from("{ appel: flap }");
```

The exception has the following error message:

```
com.grack.nanojson.JsonParserException: Unexpected token 'fap'. Did you mean 'false'? on line 1, char 10
```

As you can see, it says `fap`, while it should say `flap`.