mod_pubsub_serverinfo: Fix check for local domain The module was checking whether a host exists, but this may be misleading if our host is loaded before the host that is being checked. This change makes it check the config. This will provide a false positive in the rare case that the host is defined but not activated/enabled. But we don't have an API currently for "is this host configured and enabled?"

module:set_global();

local function sink_maker(config)
	local levels = {
		debug = module:measure("log.debug", "rate");
		info = module:measure("log.info", "rate");
		warn = module:measure("log.warn", "rate");
		error = module:measure("log.error", "rate");
	};
	return function (_, level)
		return levels[level]();
	end
end

require"core.loggingmanager".register_sink_type("measure", sink_maker);