Fix PSR-4 Auto loading warning

unicodeveloper / laravel-paystack

:credit_card: :package: :moneybag: Laravel 6, 7, 8, 9, 10 and 11 Package for Paystack

https://paystack.co

MIT License

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Fix PSR-4 Auto loading warning #124

Open kingzamzon opened 3 years ago

kingzamzon commented 3 years ago

The file name ought to start with capital letter due to the fact that the class is starting with capital letter. renamed file name from isNullException to IsNullException