Use python3 for sort_controllers.py
diff --git a/src/joystick/sort_controllers.py b/src/joystick/sort_controllers.py
index bcd05f6..93461eb 100755
--- a/src/joystick/sort_controllers.py
+++ b/src/joystick/sort_controllers.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
#
# Script to sort the game controller database entries in SDL_gamecontroller.c