[Perl/perl5] 472953: run/locale.t: Use 'is' not 'ok' for a test

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 472953645a796ce6fd09edf90e294f612584e71d
      
https://github.com/Perl/perl5/commit/472953645a796ce6fd09edf90e294f612584e71d
  Author: Karl Williamson <k...@cpan.org>
  Date:   2023-02-08 (Wed, 08 Feb 2023)

  Changed paths:
    M t/run/locale.t

  Log Message:
  -----------
  run/locale.t: Use 'is' not 'ok' for a test

'is' is a more modern, better options