The author knows his modules are useless, yet he uploads them just to annoy people. Check rt.cpan.org/Ticket/Display.html?id=81915 and rt.cpan.org/Ticket/Display.html?id=81918 for more details.
This module contains five functions. println that works almost like say in Perl 5.10, printfln and printlnf that is completely broken printf (because it only takes one argument. qprint and qprintln that I guess could be used to avoid Perl UTF warnings you SHOULDN'T ignore (instead, change encoding of STDOUT using binmode).