This patch will allow recently released (especially) GNU mirror downloads to 
succeed where they currently fail repeatedly (particulary in Scallywag), because 
(GNU) mirror downloads lack checks for any particular file requested being 
available (or not) on the selected mirror, because of propagation delays.

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry