CPAN releases are tarballs AND zipfiles (and some other weird things). It's wrong to refer to them as "tarballs" and can lead to forgetting about zip files. Instead use "archive" or "archive file". Also normalized the use of the "file" attribute to mean "the file I will be operating on" between MC::Model::Release and MC::Model::Archive.
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|File.pm||Terminology fix! Tarball -> Archive.|
|Module.pm||Remove no-longer relevant comment|
|Release.pm||Terminology fix! Tarball -> Archive.|