Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
Marshalling is a method of serialising files in Python (another method,
Pickling, is also available). It is the method that Mailman uses to store its
config files. This module is an attempt to write a pure Perl implementation of
the algorithm.