Feature request: Add action flag that tells FEH to remove the image from list after executing the action

[caradag]

I've seen many people uses actions to move files to other directories. It would be great to have a flag that tell FEH to remove the file from the list once the action has been executed. So the count of images stay correct and the list stay up-to-date.

[derf]

Indeed. feh will now check whether the image still exists after executing an action and update the filelist when appropriate.