[Buildroot] Download tag as archive from gitlab

[Angelo Compagnucci]

Hello guys,

I'm hitting some bumps trying to download a tag from gitlab as an
archive, the url format is like this:

https://gitlab.com/gitlab-org/gitlab-ce/repository/archive.tar.bz2?ref=v6.9.2

I can succesfully download the file, but then it's named
"archive.tar.bz2?ref=v6.9.2" but it cannot be extracted cause it lacks
an extensions and buildroot cannot choose the right helper to
decompress it.

How such an url can be downloaded in buildroot?

Thanks!

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Profile: http://it.linkedin.com/in/compagnucciangelo