[Perl/perl5] 08d8b6: locale.c: Copy MB_CUR_MAX to a local

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 08d8b6fc15593f5d507196f69b7a5dcbb00ebf78
      
https://github.com/Perl/perl5/commit/08d8b6fc15593f5d507196f69b7a5dcbb00ebf78
  Author: Karl Williamson <k...@cpan.org>
  Date:   2023-09-28 (Thu, 28 Sep 2023)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Copy MB_CUR_MAX to a local

This will be needed in a future commit.