@fabpot this change makes the condition consistent with [the other one in this class](https://github.com/GromNaN/symfony/blob/f5c4011f47c89ca9fc6ad1887700c418d17de8dc/src/Symfony/Component/Console/Application.php#L566):

```php
    if (count($commands) > 1 && !$exact) {
            $suggestions = $this->getAbbreviationSuggestions(array_values($commands));

            throw new \InvalidArgumentException(sprintf('Command "%s" is ambiguous (%s).', $name, $suggestions));
        }
```