Add trailing slashes to some of our pkgdb calls.
Add trailing slashes to some of our pkgdb calls.

This is related to https://fedorahosted.org/fedora-infrastructure/ticket/1681

Fale/fedora-packages,fedora-infra/fedora-packages,fedora-infra/fedora-packages,Fale/fedora-packages,fedora-infra/fedora-packages,fedora-infra/fedora-packages,Fale/fedora-packages