ip-alias: add option -no-ipalias for domain-rules

etc/smartdns/smartdns.conf

@@ -310,6 +310,8 @@ log-level info
 #   [-d] -dualstack-ip-selection [yes|no]: same as dualstack-ip-selection option
 #   -no-serve-expired: ignore expired domain
 #   -delete: delete domain rule
+#   -no-ip-alias: ignore ip alias
+#   -no-cache: ignore cache
 
 # collection of domains 
 # the domain-set can be used with /domain/ for address, nameserver, ipset, etc.