plugin: Ignore internal loggers when checking for existing loggers.
plugin: Ignore internal loggers when checking for existing loggers.

An internal logger may currently be registered by the frontend which uses it
to send log messages to a client. Usually, these internal loggers will not
actually log stuff. Thus, we'll have to ignore them when deciding about
fallbacks.

tokkee/sysdb,sysdb/sysdb,sysdb/sysdb,sysdb/sysdb,tokkee/sysdb,tokkee/sysdb