Bug#237685: configurable dselect option to erase the d/l files

[Emil <em@la.mine.nu>]

Package: apt
Version: 0.5.23
Severity: wishlist

I would like to be able to set a variable in /etc/apt/preferences (or elsewhere)
which would set the default value for erasing the .deb packages

I am doint this now by editing the following line in 
/usr/lib/dpkg/methods/apt/install:

  if [ `yesno $"Do you want to erase any previously downloaded .deb files?" y` = y ];

.. but with all the new versions of apt I'm getting tired to edit it.