Fix repo update output (list all repos created from streams)
Pkg currently doesn't list the repos it creates correctly in some cases - when the rep has multiple streams:
Processing: http://deb.debian.org/debian stretch-backports main contrib
Updated: stretch-backports-main
should be
Processing: http://deb.debian.org/debian stretch-backports main contrib
Updated: stretch-backports-main
Updated: stretch-backports-contrib
because here are the repos Pkg actually created:
# ls ~/.packages | grep backports
Packages-debian-stretch-backports-contrib
Packages-debian-stretch-backports-main