test: Ignore D-Bus message in check-realms tests
test: Ignore D-Bus message in check-realms tests

Sometimes subscription-manager tries to access realmd while we are
joining a domain. This causes the following log message:

   com.redhat.SubscriptionManager: couldn't get managed objects at /org/freedesktop/realmd: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1

This is some minor race condition, but it does not affect our tests.
Just ignore it.

deryni/cockpit,cockpituous/cockpit,deryni/cockpit,moraleslazaro/cockpit,andreasn/cockpit,deryni/cockpit,mvollmer/cockpit,mvollmer/cockpit,cockpituous/cockpit,martinpitt/cockpit,deryni/cockpit,andreasn/cockpit,cockpituous/cockpit,garrett/cockpit,cockpit-project/cockpit,garrett/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,mvollmer/cockpit,andreasn/cockpit,cockpituous/cockpit,martinpitt/cockpit,andreasn/cockpit,garrett/cockpit,cockpituous/cockpit,garrett/cockpit,andreasn/cockpit,cockpituous/cockpit,garrett/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,martinpitt/cockpit,andreasn/cockpit,cockpit-project/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,martinpitt/cockpit,andreasn/cockpit,mvollmer/cockpit,deryni/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit