[PATCH net] selftest: net: fix typo in altname test

If altname deletion of the short alternative name fails, the error
message printed is: "Failed to add short alternative name".
This is obviously a typo, as we are testing altname deletion.

Fix this using a proper error message.

Fixes: f95e6c9c4617 ("selftest: net: add alternative names test")
Signed-off-by: Andrea Claudi <redacted>
---
 tools/testing/selftests/net/altnames.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/altnames.sh b/tools/testing/selftests/net/altnames.sh
index 4254ddc3f70b..1ef9e4159bba 100755
--- a/tools/testing/selftests/net/altnames.sh
+++ b/tools/testing/selftests/net/altnames.sh

@@ -45,7 +45,7 @@ altnames_test()
 	check_err $? "Got unexpected long alternative name from link show JSON"
 
 	ip link property del $DUMMY_DEV altname $SHORT_NAME
-	check_err $? "Failed to add short alternative name"
+	check_err $? "Failed to delete short alternative name"
 
 	ip -j -p link show $SHORT_NAME &>/dev/null
 	check_fail $? "Unexpected success while trying to do link show with deleted short alternative name"

-- 
2.31.1