Minor improvements to pass psecio-parse's scan

[scottconnerly]

To run report:

composer global require psecio/parse
~/.composer/vendor/bin/psecio-parse scan c3.php

And its results:

1. /var/www/html/tests/c3.php on line 45
   'header()' calls should not use concatenation directly

header('X-Codeception-CodeCoverage-Error: ' . str_replace("\n", ' ', $message), true, 500);

For more information execute 'psecio-parse rules SetHeaderWithInput'

2. /var/www/html/tests/c3.php on line 69
   Avoid using AND, OR and XOR (in favor of || and &&) as they may cause subtle precedence bugs

if (!class_exists('PHP_CodeCoverage') and class_exists('SebastianBergmann\CodeCoverage\CodeCoverage')) {

For more information execute 'psecio-parse rules LogicalOperators'

3. /var/www/html/tests/c3.php on line 137
   The third parameter should be set (and be true) on in_array to avoid type switching issues

if (in_array('GZ', Phar::getSupportedCompression())) {

For more information execute 'psecio-parse rules TypeSafeInArray'

4. /var/www/html/tests/c3.php on line 184
   The third parameter should be set (and be true) on in_array to avoid type switching issues

if (in_array('GZ', Phar::getSupportedCompression())) {

For more information execute 'psecio-parse rules TypeSafeInArray'

5. /var/www/html/tests/c3.php on line 204
   The readfile/readlink/readgzfile functions output content directly (possible injection)

readfile($filename);

For more information execute 'psecio-parse rules Readfile'