get_extension_funcs extension parameter does not need to be lowercase

[Sjord]

Affected page

https://www.php.net/manual/en/function.get-extension-funcs.php

Issue description

This parameter must be in lowercase.

This is no longer true. The parameter is case-insensitive.

https://news-web.php.net/php.internals/132226

Steps to reproduce

No response

Suggested fix

No response

[kamil-tekiela]

We should wait for the outcome of the internals discussion.