resolved: add one more comment with a link to the matching RFC

diff --git a/src/resolve/resolved-dns-rr.h b/src/resolve/resolved-dns-rr.h
index f8066c06a6db726cb0ff36965a9bf1cac4a0458f..a09296182373eb62144c388ac653f8e457b798b1 100644 (file)
--- a/src/resolve/resolved-dns-rr.h
+++ b/src/resolve/resolved-dns-rr.h
@@ -156,6 +156,7 @@ struct DnsResourceRecord {
                         size_t signature_size;
                 } rrsig;
 
+                /* https://tools.ietf.org/html/rfc4034#section-4.1 */
                 struct {
                         char *next_domain_name;
                         Bitmap *types;