Icarus: Ignore "auto" flag

driver-icarus.c

@@ -246,6 +246,8 @@ static void icarus_detect()
 		s = iter->string;
 		if (!strncmp("icarus:", iter->string, 7))
 			s += 7;
+		if (!strcmp(s, "auto"))
+			continue;
 		if (icarus_detect_one(s))
 			string_elist_del(iter);
 	}