Allow --cache-rr=ANY with the obvious meaning.

man/dnsmasq.8

@@ -384,7 +384,7 @@ By default, dnsmasq caches A, AAAA, CNAME and SRV DNS record types.
 This option adds other record types to the cache. The RR-type can be given
 as a name such as TXT or MX or a decimal number. A single --cache-rr option
 can take a comma-separated list or RR-types and more than one --cache-rr option
-is allowed.
+is allowed. Use --cache-rr=ANY to enable caching for all RR-types.
 .TP
 .B \-r, --resolv-file=<file>
 Read the IP addresses of the upstream nameservers from <file>, instead of

src/util.c

@@ -119,7 +119,7 @@ int rr_on_list(struct rrlist *list, unsigned short rr)
 {
   while (list)
     {
-      if (list->rr == rr)
+      if (list->rr == rr || list->rr == T_ANY)
 	return 1;
 
       list = list->next;