There are still a lot that use shell tricks. Should deal with screwey
rpms and file names better though. Closes: #105283
* Display build logs after build failures.
everywhere it used to use tar zxvf. The problem with the latter is
that, on red hat anyway, tar or gzip seems to be broken, and tar does
not see an end-of-file marker, causing alien to hang when converting
rpms to debs. Closes: #96200