convert shebang lines: python -> python3
diff --git a/Tools/scripts/fixps.py b/Tools/scripts/fixps.py
index fd2ca71..b002261 100755
--- a/Tools/scripts/fixps.py
+++ b/Tools/scripts/fixps.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Fix Python script(s) to reference the interpreter via /usr/bin/env python.
 # Warning: this overwrites the file without making a backup.