[Perl/perl5] 862eff: perlapi: Emphasize that setpv() doesn't change the...

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 862efff77390e71807deb409e51fb9a5a0034807
      
https://github.com/Perl/perl5/commit/862efff77390e71807deb409e51fb9a5a0034807
  Author: Karl Williamson <k...@cpan.org>
  Date:   2024-01-15 (Mon, 15 Jan 2024)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  perlapi: Emphasize that setpv() doesn't change the UTF-8 flag

I keep getting tripped up by this.