PHP Compatibility

[null93]

Need to fix this since it fails on php-8.1.

[null93]

Simple fix with null coalescing and removing trailing commas in function args. Should be compatible with at least 7.2

root@deploy:/app# ./vendor/bin/phpcs -p app/code/JetRails/Varnish --standard=vendor/phpcompatibility/php-compatibility/PHPCompatibility --runtime-set testVersion 7.2
.................................. 34 / 34 (100%)


Time: 724ms; Memory: 16MB

root@deploy:/app# ./vendor/bin/phpcs -p app/code/JetRails/Varnish --standard=vendor/phpcompatibility/php-compatibility/PHPCompatibility --runtime-set testVersion 7.3
.................................. 34 / 34 (100%)


Time: 725ms; Memory: 16MB

root@deploy:/app# ./vendor/bin/phpcs -p app/code/JetRails/Varnish --standard=vendor/phpcompatibility/php-compatibility/PHPCompatibility --runtime-set testVersion 7.4
.................................. 34 / 34 (100%)


Time: 794ms; Memory: 16MB

root@deploy:/app# ./vendor/bin/phpcs -p app/code/JetRails/Varnish --standard=vendor/phpcompatibility/php-compatibility/PHPCompatibility --runtime-set testVersion 8.0 
.................................. 34 / 34 (100%)


Time: 714ms; Memory: 16MB

root@deploy:/app# ./vendor/bin/phpcs -p app/code/JetRails/Varnish --standard=vendor/phpcompatibility/php-compatibility/PHPCompatibility --runtime-set testVersion 8.1
.................................. 34 / 34 (100%)


Time: 709ms; Memory: 16MB