False negative SlevomatCodingStandard.ControlStructures.DisallowTrailingMultiLineTernaryOperator

Hello, looks like this [sniff](https://github.com/slevomat/coding-standard/blob/master/doc/control-structures.md#slevomatcodingstandardcontrolstructuresdisallowtrailingmultilineternaryoperator-) does not report error for such cases:

```php
function foo() {}

$a = $b === 'a' ? foo()
    : 'c';
```

```php
function foo() {}

$a = $b === 'a' ? foo(
) : 'c';
```