convert shebang lines: python -> python3
diff --git a/Tools/scripts/findnocoding.py b/Tools/scripts/findnocoding.py
index 78fc8ef..77607ce 100755
--- a/Tools/scripts/findnocoding.py
+++ b/Tools/scripts/findnocoding.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """List all those Python files that require a coding directive