tools/examples: hardcode #!/usr/bin/python shebang
diff --git a/tools/tcpstates.py b/tools/tcpstates.py
index 736de97..4a21f02 100755
--- a/tools/tcpstates.py
+++ b/tools/tcpstates.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 # -*- coding: utf-8 -*-
 # @lint-avoid-python-3-compatibility-imports
 #