Bug#755968: libpam-systemd: should depend on dbus

[Ansgar Burchardt]

Package: libpam-systemd
Version: 208-6
Severity: normal

libpam-systemd has a dependency on systemd-sysv (or systemd-shim) to
ensure logind is available, but it has no dependency on dbus. However
if dbus is not installed, it cannot talk to logind...

systemd itself should probably also recommend dbus. Having gettys on
more than one virtual terminal is often nice ;)

Ansgar