Bug#274978: no sure download

[Dan Jacobson <jidanni@jidanni.org>]

Here we see the effect reading from local wwwoffle on an offline system:

# aptitude install ftm
Need to get 27.2kB of archives. After unpacking 73.7kB will be used.
Get:1 http://debian.linux.org.tw sid/main ftm 0.0.7 [27.2kB]
Err http://debian.linux.org.tw sid/main ftm 0.0.7
  Error reading from server Remote end closed connection
# aptitude install ftm
Need to get 27.2kB of archives. After unpacking 73.7kB will be used.
Get:1 http://debian.linux.org.tw sid/main ftm 0.0.7 [27.2kB]
Fetched 27.2kB in 0s (2411kB/s)

One cannot reproduce it usually without rebooting, as internal buffers
filling affect timing issues, etc.