[Perl/perl5] 574e1e: locale.c: Use SvPV_nomg_const_nolen() over SvPV_n...

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 574e1eb30a24112d3f24f8b9ca24289b56daea11
      
https://github.com/Perl/perl5/commit/574e1eb30a24112d3f24f8b9ca24289b56daea11
  Author: Karl Williamson <k...@cpan.org>
  Date:   2024-02-07 (Wed, 07 Feb 2024)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use  SvPV_nomg_const_nolen() over SvPV_nolen()

The new way is the same call earlier in the function, and should have
been that one from the beginning