Help for this page
$ perl -MCGI -E "say CGI->new()->header(-type => 'text/html', -charset + =>'UTF-8')" Content-Type: text/html; charset=UTF-8
$ perl -MCGI -E "say CGI->new()->header(-type => 'text/html; charset=U +TF-8')" Content-Type: text/html; charset=UTF-8