This is Perl module Queue::Q4Pg::Lite.
INSTALLATION
Queue::Q4Pg::Lite installation is straightforward. If your CPAN shell is set up,
you should just be able to do
% cpan Queue::Q4Pg::Lite
Download it, unpack it, then build it as per the usual:
% perl Makefile.PL
% make && make test
Then install it:
% make install
DOCUMENTATION
Queue::Q4Pg::Lite documentation is available as in POD. So you can do:
% perldoc Queue::Q4Pg::Lite
to read the documentation online with your favorite pager.
FUJIWARA