[Perl/perl5] af9733: builtin.c: Remember to EXTEND() before using XSRET...

[Paul Evans via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: af9733f1e2152339a4db682937e7c6c6ee95b5fb
      
https://github.com/Perl/perl5/commit/af9733f1e2152339a4db682937e7c6c6ee95b5fb
  Author: Paul "LeoNerd" Evans <leon...@leonerd.org.uk>
  Date:   2024-01-26 (Fri, 26 Jan 2024)

  Changed paths:
    M builtin.c

  Log Message:
  -----------
  builtin.c: Remember to EXTEND() before using XSRETURN_{YES,NO}