mod_turn_external: Fix type of config option (thanks mirux) There was a separate boolean option to enable TLS before, but it was merged with the port number option and it seems the typed API interface got confused. Backport of trunk rev aa7a8aa64d3f

-- Provides total CPU time, useful for DERIVE

module:set_global();

module:provides("statistics", {
	statistics = {
		cpu_total = { -- milliseconds of CPU time used
			get = function()
				return os.clock() * 1000;
			end
		}
	}
});