PHP Warning because of option to specify PHP executable

[ssammut]

The new option to specify the php executable it causing the createPathDirectories function to throw a warning.

One of the entries in the $this->paths is

["php_executable"]=>
  string(3) "php"

When that is processed by the createPathDirectories I get a

PHP Warning: mkdir(): Permission denied in /var/app/current/vendor/phobetor/rabbitmq-supervisor-bundle/Phobetor/RabbitMqSupervisorBundle/Services/RabbitMqSupervisor.php on line 269

Due to:

dirname("php"); returns value "." and mkdir(".", 0755, true); gives that warning.

If permission would have been granted anyway I don't see why there would be the need to create that directory as it would already exist anyway.