PendingShortScheduleCommand::command method will attempt to resolve command name if class name was given

[etahamer]

I noticed difference between original scheduler and shortScheduler that if I pass class name instead of actual artisan command signature, it does not attempt to resolve command name like in original Laravel scheduler (\Illuminate\Console\Scheduling\Schedule::command). So I thought to add such functionality to make it more convenient for for everyone when moving from regular schedule to short schedule.

[freekmurze]

Thanks!