[Perl/perl5] 528827: Fix version in latest added epigraph for 5.39.2

[Paul Evans via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 528827f29e4ca70bb6055c9c3e399549271d68ae
      
https://github.com/Perl/perl5/commit/528827f29e4ca70bb6055c9c3e399549271d68ae
  Author: Paul "LeoNerd" Evans <leon...@leonerd.org.uk>
  Date:   2023-08-21 (Mon, 21 Aug 2023)

  Changed paths:
    M Porting/epigraphs.pod

  Log Message:
  -----------
  Fix version in latest added epigraph for 5.39.2