trivial: Update clear-undefined
diff --git a/progs/trivial/clear-undefined.c b/progs/trivial/clear-undefined.c
index 1569860..ce066bf 100644
--- a/progs/trivial/clear-undefined.c
+++ b/progs/trivial/clear-undefined.c
@@ -54,6 +54,13 @@
glVertex2d(1.0, 0.0);
glEnd();
+ glBegin(GL_QUADS);
+ glVertex2d(0.0, 0.0);
+ glVertex2d(0.0, -1.0);
+ glVertex2d(1.0, -1.0);
+ glVertex2d(1.0, 0.0);
+ glEnd();
+
glEnable(GL_SCISSOR_TEST);
glClearColor(1, 1, 0, 0);
glScissor(Width / 2, 0, Width - Width / 2, Height / 2);