Error on formats with "#" right of the decimal place (like "$#,###.00##")

When adding `#` symbols to the right of the decimal (like in a currency) I'm getting errors like `Error: unsupported format |#,###.00##|`

Here's an example:

```js
console.log(SSF.format('$#,###.00', 1.1111));
// "$1.11"
//
// Working!

console.log(SSF.format('$#,###.00##', 1.1111));
// Uncaught Error: unsupported format |#,###.00##|
//
// Not working!
// Expected: "$1.1111"
```
