Stylistic tweak.

message.c

@@ -905,13 +905,13 @@ flushupdates(struct network *net)
                 last_prefix = route->src->prefix;
                 last_plen = route->src->plen;
                 continue;
-            } else {
-                /* check_xroutes sends updates after retracting an xroute,
-                   so send a retraction if there's no matching route. */
+            }
+            /* If we reach this point, there's no route for this prefix.
+               This can happen after an xroute has been retracted, so send
+               a retraction. */
             really_send_update(net, myid, b[i].prefix, b[i].plen,
                                myseqno, INFINITY);
         }
-        }
         schedule_flush_now(net);
     done:
         free(b);