#5417 GUB: bzip2 link should be updated

[Federico Bruni]

While trying a fresh 'make bootstrap' on debian 9, I got an error when trying to download bzip2.
As reported by LWN, bzip.org seems now a free domain...

At the moment you can replace the link in gub/specs/bzip2.py with:
https://web.archive.org/web/20170824030156/http://www.bzip.org/1.0.5/bzip2-1.0.5.tar.gz

There's a comment in above article saying:

bzip.org is unfortunately no longer available for the bzip2 project. It will soon be restored at its former project home at https://sourceware.org/bzip2 (which currently only hosts older releases).

Before fixing GUB, let's wait and see if it gets restored.

[Federico Bruni]

GUB can't find the file and downloads an HTML page.. so first remove it:

rm downloads/bzip2/bzip2-1.0.5.tar.gz

then get the real .tar.gz file from Archive:

wget -P downloads/bzip2 https://web.archive.org/web/20170824030156/http://www.bzip.org/1.0.5/bzip2-1.0.5.tar.gz

[Federico Bruni]

I have enough with above manual change each time I test a new GUB build, so I've sent a PR here:
https://github.com/gperciva/gub/pull/50

I wouldn't bother with Rietveld code review for such a minor change.
I hope Phil can just merge it.

[Federico Bruni]

eventually this PR (using Debian mirror) was merged:
https://github.com/gperciva/gub/pull/49