uscan, get-orig-source and multiple source packages

[Guðjón Guðjónsson <gudjon.i.gudjonsson@gmail.com>]

Hi list

I am upgrading my packages after the release of Buster and starting with
eric.

The get-orig-source target has been removed from the rules file and I know that
is according to the current standard but I miss it :(
In eric version 18.08 I could add the whole multiple source to the
pristine-tar target:
eric_18.08.orig.tar.gz.delta
eric_18.08.orig.tar.gz.id
eric_18.08.orig-transl-de.tar.gz.delta
eric_18.08.orig-transl-de.tar.gz.id
eric_18.08.orig-transl-en.tar.gz.delta
eric_18.08.orig-transl-en.tar.gz.id
eric_18.08.orig-transl-es.tar.gz.delta
eric_18.08.orig-transl-es.tar.gz.id
eric_18.08.orig-transl-ru.tar.gz.delta
eric_18.08.orig-transl-ru.tar.gz.id

But I have no clue how to do that without the get-orig-source target.
Can someone please point me to a well maintained multiple source package to
take a look at.

Regards
Gudjon