Bug#525813: apt-file: Doesn't work very well when multiple package versions are available

[Christoph Anton Mitterer <calestyo@scientia.org>]

Hey.

I took the liberty to forcemerge these two bugs (578727 and 525813) as
they seem to be about the same thing.

My suggestion would be that per default, the apt-file should print the
package name with =version.
Perhaps with the exception if only one version is available (or maybe
there should be an option, that causes the =version to be omitted, if
and only if, only on version is available).

When specifying the package name I think it should also allow =version
to be appended and follow the behaviour of e.g. apt-get cache, that is:
- if no version is given, match all available versions
- if one is given, match only that.


Cheers,
Chris.