[Perl/perl5] 45d6cb: perlapi: Consolidate and revise pod for toCASE_CHA...

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 45d6cb5ec05ebf2c464b1f7b3d7eb4e4af99dbd0
      
https://github.com/Perl/perl5/commit/45d6cb5ec05ebf2c464b1f7b3d7eb4e4af99dbd0
  Author: Karl Williamson <k...@cpan.org>
  Date:   2021-07-17 (Sat, 17 Jul 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  perlapi: Consolidate and revise pod for toCASE_CHANGEfoo()

This finishes the work started by
3cb048e540f681a46e641b466030b55feaf5d337 for toLOWERfoo, using the same
paradigm, for the rest of the case changing macros and functions.