[PHP 8] Incompatibility due to old civix
FILE: civiexportexcel/civiexportexcel.civix.php
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FOUND 1 ERROR AFFECTING 1 LINE
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246 | ERROR | [x] Curly brace syntax for accessing array elements and string offsets has been deprecated in PHP 7.4
| | and removed in PHP 8.0. Found: $entry{0}
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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