[PATCH] test: Add trigger for more predictable run time

[eugene.loh@oracle.com]

From: Eugene Loh <eugene.loh@oracle.com>

The test had no trigger and so waited haphazardly for the write:entry
probe to fire.  This typically worked, but led to variable run times
and even, though rarely, a test timeout and failure.

Add a trigger for more reproducible and typically shorter run times.

Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
---
 test/unittest/error/tst.argv-corruption-by-error.d | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/unittest/error/tst.argv-corruption-by-error.d b/test/unittest/error/tst.argv-corruption-by-error.d
index 6fd1834e1..1fdd89858 100644
--- a/test/unittest/error/tst.argv-corruption-by-error.d
+++ b/test/unittest/error/tst.argv-corruption-by-error.d
@@ -1,6 +1,6 @@
 /*
  * Oracle Linux DTrace.
- * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2024, 2025, Oracle and/or its affiliates. All rights reserved.
  * Licensed under the Universal Permissive License v 1.0 as shown at
  * http://oss.oracle.com/licenses/upl.
  */
@@ -13,6 +13,7 @@
  *
  * SECTION: dtrace Provider
  */
+/* @@trigger: periodic_output */
 
 #pragma D option quiet
 
-- 
2.47.3