With the old version of less, when called as either "more" or "less", if you press either G or F ^C, you would be left at a prompt at the end of the file.
In the updated version these differ; called as "less" this works fine, but as "more" it exits. Not sure if this is intentional but I'm finding it quite annoying as I find it a lot easier to type "more" than "less"..
