ports/net/rbldnsd/patches/patch-rbldnsd_c

Index: rbldnsd.c
--- rbldnsd.c.orig
+++ rbldnsd.c
@@ -661,7 +661,7 @@ break;
 #endif
 
   if (!user && !(uid = getuid()))
-    user = "rbldns";
+    user = "_rbldns";
 
   if (!user)
     p = NULL;