Description:
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When PHP-FPM default configuration is used (master running as root, spawning setuid'd childs), the childs' logs created with master's owner:group, which is extremely inconvenient.

https://bugs.php.net/bug.php?id=69662

Test script:
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Install PHP-FPM SAPI.
Create a new user named i.e. "php-fpm".
Create a new FPM pool with

    [php-fpm]
    user = $pool
    listen = <whatever suits your server>
    access.log = "/home/$pool/php-access.log"
    php_admin_value[error_log] = "/home/$pool/php-error.log"

Expected result:
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Logs "/home/php-fpm/php-access.log" and "/home/php-fpm/php-error.log" created with "php-fpm" owner.

Actual result:
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Both logs will be created with root:root owner, or worse, if directory has SGID bit set, they will be created with root:whatever but with 0600 permissions.