Re: `delete-windows-on' completion list should include only buffers that correspond to FRAME arg

[Richard Stallman]

    The completion list of command `delete-windows-on' is all buffers -
    `interactive' is simply called with "bDelete windows on (buffer): ". Most of
    the time, however, many of those buffers have no windows to delete.

    It would be better to have `interactive' check the FRAME arg, and propose a
    list of buffer candidates for completion that is compatible (consistent)
    with FRAME.

I think it is better to leave this alone.  It could be confusing for
completion to fail to recognize a buffer name.