update perl6 description
update perl6 description

[perl #76848] change description of Perl 6

ajolma/perlweb,autarch/perlweb,dagolden/perlweb,Abigail/perlweb,bjakubski/perlweb,bjakubski/perlweb,alcy/perlweb,PeterMartini/perlweb,bjakubski/perlweb,autarch/perlweb,dagolden/perlweb,ajolma/perlweb,briandfoy/perlweb,ajolma/perlweb,PeterMartini/perlweb,PeterMartini/perlweb,briandfoy/perlweb,briandfoy/perlweb,Abigail/perlweb,Abigail/perlweb,alcy/perlweb,alcy/perlweb,dagolden/perlweb,autarch/perlweb