downloader: Changed way of how callback params for the lr_download_single_cb are calculated.
downloader: Changed way of how callback params for the lr_download_single_cb are calculated.

Tojaj/librepo,rholy/librepo,cgwalters/librepo,bgamari/librepo,rholy/librepo,cgwalters/librepo,rpm-software-management/librepo,rholy/librepo,bgamari/librepo,bgamari/librepo,Conan-Kudo/librepo,rholy/librepo,rpm-software-management/librepo,Conan-Kudo/librepo,Conan-Kudo/librepo,rpm-software-management/librepo,Tojaj/librepo,cgwalters/librepo,cgwalters/librepo,Tojaj/librepo