public function executeHelp($command, $option = [])
    {
        $commandClass = "\\Friday\\Console\\Command\\".ucfirst($command)."Command";
        $cmd = new $commandClass($option);
        return $cmd->help();
    }
public function executeHelp($command, $option = [])
    {
        $commandClass = "\\Friday\\Console\\Command\\".ucfirst($command)."Command";
        $cmd = new $commandClass($option);
        return $cmd->help();
    }
public function executeHelp ( $ command , $ option = [ ] ) { $ commandClass = "\\Friday\\Console\\Command\\" . ucfirst ( $ command ) . "Command" ; $ cmd = new $ commandClass ( $ option ) ; return $ cmd -> help ( ) ; }
Execute Help command.

@param  string  $command
@param  array   option
@return string
Execute Help command .