selftests/ftrace: fix spelling error in poll test comment

Fix typo "happned" -> "happened" in ftrace poll test comment.

Link: https://lore.kernel.org/r/20260702015634.366201-1-wangyan01@kylinos.cn
Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Wang Yan 2026-07-02 09:56:34 +08:00 • committed by Shuah Khan
commit 20f01a5565