git: f8cd0c8e20b0 - stable/13 - tests: fix test for NULL encription

The branch stable/13 has been updated by ae:

URL: https://cgit.FreeBSD.org/src/commit/?id=f8cd0c8e20b0be367c9508770a92ea7649f5da4b

commit f8cd0c8e20b0be367c9508770a92ea7649f5da4b
Author:     Andrey V. Elsukov <ae@FreeBSD.org>
AuthorDate: 2025-03-25 07:23:40 +0000
Commit:     Andrey V. Elsukov <ae@FreeBSD.org>
CommitDate: 2025-04-02 07:54:12 +0000

    tests: fix test for NULL encription
    
    After 04207850a9b9 it is required that key length is not zero.
    Add some key to avoid error.
    
    Reported by:    markj
    
    (cherry picked from commit b6708045590712930c533e916e3d6fdfe48ec5ba)
---
 tests/sys/netipsec/tunnel/empty.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/sys/netipsec/tunnel/empty.sh b/tests/sys/netipsec/tunnel/empty.sh
index dc1d3708f744..56480d21f4ec 100755
--- a/tests/sys/netipsec/tunnel/empty.sh
+++ b/tests/sys/netipsec/tunnel/empty.sh
@@ -11,7 +11,7 @@ v4_head()
 v4_body()
 {
 	# Can't use filename "null" for this script: PR 223564
-	ist_test 4 null ""
+	ist_test 4 null "1234"
 }
 
 v4_cleanup()
@@ -28,7 +28,7 @@ v6_head()
 
 v6_body()
 {
-	ist_test 6 null ""
+	ist_test 6 null "5678"
 }
 
 v6_cleanup()