auth tests tkey.py: explicitly use python3

diff --git a/regression-tests/tkey.py b/regression-tests/tkey.py
index 8bbd6f9c94b34a74738d926f85d619ee43395af7..1a466284e9ed3d1e699e2c9e52fcaff64051ad45 100755 (executable)
--- a/regression-tests/tkey.py
+++ b/regression-tests/tkey.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import socket
 import select