But if the feed knows that an event is "all day" event can't it just hide the time info? But this is a minor thing. I can live with it.
I use Google calendar synced with N9. It seems that if I create any event ("all day" or regular) in Google it will have this empty line. If I create the event with N9 there is no empty line. I see no description anywhere and I don't enter it. Can this be fixed and can you check what is causing it? Did some more testing. It seems that Google or N9 adds an empty Space in description field. Not sure who is to blame here. Have to report a bug.