Bugfix for: PHP Warning:  vsprintf() expects parameter 2 to be array, string given

The cache dir is passed as parameter to the translate method as string, while an array is expected.

PHP  10. phpDocumentor\Parser\Command\Project\ParseCommand->__() /usr/share/php/phpDocumentor/src/phpDocumentor/Parser/Command/Project/ParseCommand.php:195
PHP  11. vsprintf() /usr/share/php/phpDocumentor/src/phpDocumentor/Parser/Command/Project/ParseCommand.php:320