[PATCH] tar: support the common file extensions .tlzma and .txz

[Lauri Kasanen]

> > I am not convinced .txz and .tlzma extensions are common.
> > (In my opinion, existence of .tgz extension was a mistake).
> 
> They exist, and GNU tar handles them, so I think bb tar shouldn't puke
> when it sees one. Busybox does handle .tgz and .tbz2, because they have
> the magic detection already written (xz magic is marked todo in
> archival/libarchive/get_header_tar.c).

Replying to myself, but I just remembered all Slackware tarballs are
named .txz (changed in 2009 from tgz).
Perhaps that's worth something for the "common" argument. :)

- Lauri

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