Bug fix for when no tar options are passed

[Tatsh]

My last PR introduced a bug when no tar options are given because in that scenario the argument would be '' which tar does not just ignore.

tar: Substituting `.' for empty member name

Also:

• Make tabs more consistent
• Remove unnecessary quoting
• Simplify boolean checks
• Exclude the archive from tar with the full path
• Make the command previews show the fully expanded commands

[Tatsh]

Also, since profile 17.1, all systems should have kernel modules under /lib/modules. This removes the need for checking x86-64.

To maintain backward compatibility, you can archive "${TARGET}lib"*"/modules/$(uname -r)"*. I can provide this fix in this branch too if you would like.

[TheChymera]

Yes, backwards-compatibility would be nice, with Gentoo being rolling-release it's likely we'll have users with older profiles for a very long while.

Thanks for sniffing out those errant tabs.

For identity checks I would prefer to keep all strings quoted. You never know what weird variable names people have defined in their session.

[Tatsh]

Will fix the strings shortly

[Tatsh]

All set

[TheChymera]

Could you rebase the commits into one?

[Tatsh]

Done

[TheChymera]

Thank you!