No useful output when an error occurs in the bootstrap script

[sebastianbergmann]

Reported by @spriebsch:

bootstrap.php

<?php declare(strict_types=1);
throw new Exception('Big boom. Big bada boom.');

Test.php

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class Test extends TestCase
{
    public function testOne(): void
    {
        $this->assertTrue(true);
    }
}

Expected output

$ phpunit --bootstrap bootstrap.php Test.php
PHPUnit 9.5.2 by Sebastian Bergmann and contributors.

Error in bootstrap script: Exception: Big boom. Big bada boom.

Actual output

$ phpunit --bootstrap bootstrap.php Test.php
PHPUnit 9.5.2 by Sebastian Bergmann and contributors.

Big boom. Big bada boom.