bug#10999: delete-other-windows should say why nothing happens sometimes

[Lars Ingebrigtsen]

jidanni@jidanni.org writes:

> C-x 1 runs the command delete-other-windows
>
> If not by default, then there should be some option settable to make it say
> "There are no other windows, HOLMES",
> if that indeed is the case.
>
> Otherwise the user scratches his/her head wondering why nothing happens.

I've now done this on the trunk.

> Same with
>
> C-x o runs the command other-window.
>
> You might think it is OK for nothing to happen.

And this, too.

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   bloggy blog: http://lars.ingebrigtsen.no