Bug#57070: --print-uris should work with apt-get update

[Nathaniel Smith <njs@uclink4.berkeley.edu>]

Package: apt
Version: 0.3.17
Severity: normal

If I do apt-get update --print-uris, then it prints the same things as a
normal apt-get update.  It should print the uris of the Packages files
that it is downloading.

-- System Information
Debian Release: 2.2
Architecture: i386
Kernel: Linux WyrmWeyr 2.2.14 #52 SMP Tue Jan 4 10:24:02 PST 2000 i686

Versions of packages apt depends on:
hi  libc6                         2.1.2-11   GNU C Library: Shared libraries an
ii  libstdc++2.10                 1:2.95.2-5 The GNU stdc++ library