convert shebang lines: python -> python3
diff --git a/Tools/scripts/pdeps.py b/Tools/scripts/pdeps.py
index 5c5a05b..938f31c 100755
--- a/Tools/scripts/pdeps.py
+++ b/Tools/scripts/pdeps.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # pdeps
 #