convert shebang lines: python -> python3
diff --git a/Tools/scripts/pindent.py b/Tools/scripts/pindent.py
index f80a8b7..15b6399 100755
--- a/Tools/scripts/pindent.py
+++ b/Tools/scripts/pindent.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # This file contains a class and a main program that perform three
 # related (though complimentary) formatting operations on Python