/usr/share/doc/libplack-perl/examples/dot-psgi/Dumper.psgi is in libplack-perl 1.0033-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | use Data::Dumper;
my $handler = sub {
my $env = shift;
return [ 200, [ "Content-Type" => "text/plain" ], [ Dumper $env ] ];
};
|