From a bug report, attempting to open or close
a door while blind didn't always update the map display after telling the
player that a remembered-closed door was already open or a remembered-open
door was already closed. And in the cases where it did update the map to
reflect a change in door state, it didn't use up a turn. Now always update
the display and use up a turn when 'o' or 'c' reveals any new information.