libperl4-corelibs-perl - 0.004-1+deb10u1 main

This is a collection of .pl files that have historically been bundled with
the Perl core but are planned not to be so distributed with core version
5.15 or later. Relying on their presence in the core distribution is
deprecated; they should be acquired from this package instead. From core
version 5.13, until their removal, it is planned that the core versions of
these libraries will emit a warning when loaded. The separately packaged
version will not emit such a warning.