Enhance --synth-domain to allow names with sequential integers.
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
index f4d330a..6773b69 100644
--- a/src/dnsmasq.h
+++ b/src/dnsmasq.h
@@ -839,7 +839,7 @@
 #ifdef HAVE_IPV6
   struct in6_addr start6, end6;
 #endif
-  int is6;
+  int is6, indexed;
   struct cond_domain *next;
 };