Re: delete-windows-on

[martin rudalics]

>> 2. Besides, it is not the purpose of `delete-windows-on' to determine whether
>> the BUFFER arg in fact corresponds to an existing buffer or someone just 
fucked
>> up. Its purpose is to delete a window (or do nothing).
>
> No. Its purpose is to "[d]elete all windows showing BUFFER-OR-NAME."
> An incorrect BUFFER-OR-NAME is an error.

A BUFFER-OR-NAME argument must be treated consistently through all
functions that have it.  So raising an error is obviously TRT here.

martin