This is Perl module Debug::STDERR.

INSTALLATION

Debug::STDERR installation is straightforward. If your CPAN shell is set up, you should just be able to do

% cpan Debug::STDERR

Download it, unpack it, then build it as per the usual:

% perl Makefile.PL
% make && make test

Then install it:

% make install

DOCUMENTATION

Debug::STDERR documentation is available as in POD. So you can do:

% perldoc Debug::STDERR

to read the documentation online with your favorite pager.

takeshi miki