[Perl/perl5] f42f86: perl51200delta: fix typo (missing '.')

[mauke via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: f42f866887b1667a456be813d59d52dc2ecca645
      
https://github.com/Perl/perl5/commit/f42f866887b1667a456be813d59d52dc2ecca645
  Author: Lukas Mai <lukasmai....@gmail.com>
  Date:   2023-10-02 (Mon, 02 Oct 2023)

  Changed paths:
    M pod/perl5120delta.pod

  Log Message:
  -----------
  perl51200delta: fix typo (missing '.')