Bug#458663: gz/bz2/xz for debootstrap data.tar

[Frans Pop <elendil@planet.nl>]

On Monday 16 November 2009, Otavio Salvador wrote:
> > How will debootstrap react when the decompressors are not available?
>
> It is going to output an error ... "File not found!" :-)

IMHO it should at the very least test if the decompressor is available [1] 
and output a more meaningful message than that. A user should not have to 
grub through the source to find out why it's failing.

> > Please don't commit patches blindly.
>
> I did not.

OK.

[1] Using 'if type <program> >/dev/null 2>&1' for compatibility with D-I.