Add IPv6 local address to only_from list

Add IPv6 local address to only_from list

startup/default-xinetd.in

@@ -10,6 +10,6 @@ service nrpe
     group           = @nrpe_group@
     server          = @sbindir@/nrpe
     server_args     = -c @pkgsysconfdir@/nrpe.cfg --inetd
-    only_from       = 127.0.0.1
+    only_from       = 127.0.0.1 ::1
     log_on_success  = 
 }