progs/trivial: Redraw upon keypress.
diff --git a/progs/trivial/dlist-recursive-call.c b/progs/trivial/dlist-recursive-call.c
index fe06b2b..90224f6 100644
--- a/progs/trivial/dlist-recursive-call.c
+++ b/progs/trivial/dlist-recursive-call.c
@@ -118,7 +118,7 @@
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();