This script was completely careless regarding the chance
to meet an empty variable resulting in plain "rpm -qa"
and subsequent attempt to, well, remove *all* packages.

Thanks zerg@ for being persistent this time, even if
he could probably find the culprit and send in this patch.
:)

Thanks someone for review and feedback:
http://www.opennet.ru/openforum/vsluhforumID3/83728.html#136

Better cleanup and i18n controls are due but in the meantime,
let's at least build something actually useful.