Bug#316337: Better workaround

[Roan Kattouw <roan.kattouw@home.nl>]

What I believe to be the cause of the trouble are the files in 
/var/lib/apt/lists/partial/
apt-get update leaves some empty files there, and it's exactly the 
package lists corresponding to those files that bzip2 chokes on. I got 
into the habit of running
# rm -f /var/lib/apt/lists/partial/*
# apt-get update
but there should be a better way: apt-get update should somehow avoid 
creating empty files in /var/lib/apt/lists/partial or nuke the empty 
files as part of its cleanup.

Also, by some research I don't remember anymore, I think I found out the 
reason for bzip2's choking: apt-get feeds it an empty file (maybe the 
empty lists/partial file?). Whether this is correct I don't remember, 
I'll see if I can prove it tomorrow.

<http://www.spreadfirefox.com/?q=affiliates&id=96235&t=194>