Preserve whitespace in expected hard array parsing values

Given the input from hard_example.toml:

```toml
    test_array = [ "] ", " # "]      # ] There you go, parse this!
```

I think the expected output should be

```yaml
test_array: ['] ', ' # ']
```

And not

```yaml
test_array: [']', '#']
```

That is, preserve whitespace in strings.