fix prototype

[remicollet]

No description provided.

[kocsismate]

Since there is a radio silence from @DomBlack, I'm going to merge this PR later this week. IMO, a new release is warranted with all the PHP 8 fixes, so I'd like to handle it if Dominic doesn't disagree.

[jmwendt]

I'm not familiar with maintaining PECL packages, do you know what would need to be done to release a new version there: https://pecl.php.net/package/scrypt?

[kocsismate]

I'm not familiar with maintaining PECL packages, do you know what would need to be done to release a new version there:

I do not yet know it, but I'll try to release a new version soon. :)

[jmwendt]

I'm not familiar with maintaining PECL packages, do you know what would need to be done to release a new version there:

I do not yet know it, but I'll try to release a new version soon. :)

It would be greatly appreciated.