Script: Always reload from disk automatically?

Blender’s internal script editor is not useful other than the [Run script] button. So, I am trying to edit the script with an external editor, switch to Blender, and run it using the [Run script] button.

When the script is edited externally, Blender shows this and asks me to what to do each time:

Is it possible to make Blender always reload from the disk automatically, without asking?