[php-src] Issue #8907: strcmp return value changed between 8.2 alpha 1 and alpha 2

Issue: https://github.com/php/php-src/issues/8907 Author: TRowbotham ### Description https://3v4l.org/Iue7N - previous behavior https://3v4l.org/Iue7N/rfc#vgit.master - behavior in 8.2 alpha 2 I didn't notice this documented in the release notes or upgrade notes, though the return value is still technically correct according to the [documentation](https://www.php.net/manual/en/function.strcmp.php#refsect1-function.strcmp-returnvalues). If the change in behavior was intentional, it may be worth noting somewhere. ### PHP Version PHP 8.2.0alpha2 ### Operating System Ubuntu 20.04