Allow wishing for secret doors and secret corridors. It's a bit
more strict about where the wish is performed than wishing for
furniture. Implemented in order to test drum of earthquake effects.
I spent a lot of time figuring out SDOOR details that somebody
already knew at some point but evidently didn't document--you can't
specify D_CLOSED for them or the display code will issue impossible
warnings about wall mode angles.
projects / nethack / commit