Bug#157759: Bug#445985: environment proxy settings

[Jussi Hakala <jussi.hakala@hut.fi>]

Tim Connors <reportbug@rather.puzzling.org> wrote:
> I strongly object to the proxy environment variable overriding that in
> the conf file, because the apt.conf setting is more specific and is
> purely for apt, and has likely been set by the sysadmin specifically
> to suite the properties of debian packages -- large, and likely to be
> updated on a lot of machines.  So if you are using apt-cacher, and all
> of your machines use apt-cacher for the apt proxy, then you can set it
> as the proxy for apt only, and everything else can keep using your
> squid proxy.

Then the correct alternative would be to ignore http_proxy altogether. 
Not to ignore proxy setting in apt.conf because http_proxy is set.