Mark Bluetooth printers as being local

For discovery purposes. Also add a better label for the printer,
and append "(Bluetooth") to the "unique" name.
diff --git a/cups/main.c b/cups/main.c
index 2fbfe7e..fda3339 100644
--- a/cups/main.c
+++ b/cups/main.c
@@ -226,7 +226,7 @@
 		 bdaddr[9], bdaddr[10],
 		 bdaddr[12], bdaddr[13],
 		 bdaddr[15], bdaddr[16]);
-	printf("network %s \"Unknown\" \"%s (Bluetooth)\"", uri, escaped);
+	printf("direct %s \"%s\" \"%s (Bluetooth)\"", uri, escaped, escaped);
 	if (id != NULL)
 		printf(" \"%s\"\n", id);
 	else