mirrorlist: add links to the actual file on each mirror
mirrorlist: add links to the actual file on each mirror

The concatenation of the mirror URL and file path creates a double slash
in the link but it shouldn't cause any real harm.

etix/mirrorbits,wsnipex/mirrorbits,etix/mirrorbits,kib/mirrorbits,wsnipex/mirrorbits,etix/mirrorbits,Myself5/mirrorbits,kib/mirrorbits,Myself5/mirrorbits,Myself5/mirrorbits,kib/mirrorbits,wsnipex/mirrorbits