Added sem02 test.
diff --git a/runtest/ipc b/runtest/ipc
index 622f78f..7fe3973 100644
--- a/runtest/ipc
+++ b/runtest/ipc
@@ -28,3 +28,4 @@
 # using non-blocking I/O
 
 sem01 sem01
+sem02 sem02