[Perl/perl5] 446aa4: Fix typo in perlperf

[Amory Meltzer via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 446aa4d8700efb6363ff34b09d37d5968a3ba827
      
https://github.com/Perl/perl5/commit/446aa4d8700efb6363ff34b09d37d5968a3ba827
  Author: Amory Meltzer <amorymelt...@gmail.com>
  Date:   2023-10-05 (Thu, 05 Oct 2023)

  Changed paths:
    M AUTHORS
    M pod/perlperf.pod

  Log Message:
  -----------
  Fix typo in perlperf