Clean up package function for python2

``|| return 1`` is very old syntax and is no longer needed. And, the ``install`` command can handle directory creation and file installation in the same command which cuts a great deal of unnecessary commands out.

Also, remember, msg2s in the package function will be printed during the making of the package, not during the installation. Thus, instead of msg2s (as this really would serve only as documentation), comments should be preferred.