Suppressing warnings when running exec. Fixes: Generating code coverage report in HTML format ...PHP Warning:  exec(): Unable to fork [git describe --tags] in /var/www/vendor/phpunit/php-code-coverage/PHP/CodeCoverage/Version.php on line 76
Suppressing warnings when running exec.
Fixes: Generating code coverage report in HTML format ...PHP Warning:  exec(): Unable to fork [git describe --tags] in /var/www/vendor/phpunit/php-code-coverage/PHP/CodeCoverage/Version.php on line 76

Koc/php-code-coverage,sebastianbergmann/php-code-coverage,kelunik/php-code-coverage,sebastianbergmann/php-code-coverage,theseer/php-code-coverage,sebastianbergmann/php-code-coverage,tarlabs/php-code-coverage-fix,bwoebi/php-code-coverage,theseer/php-code-coverage,dnalini/PHP-CODE-Coverage,iFixit/php-code-coverage,theseer/php-code-coverage,tarlabs/php-code-coverage-fix