I'd removed debianMajor and the like in the last commit, but I missed
one instance of it being used: To install the unar package on jessie and
greater systems. Well, jessie is now oldstable and wheezy is so
obsolete you're not even recommended to upgrade from it. Nowadays, we
should just be installing the package.
We ought to check for it in /usr/local and see if we can determine if
its an old version and remove it, probably. If someone else would like
to tackle that, feel free.
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