bug#9134: don't force mystery on user trying to find out what is completing after the word "ssh" in *shell*

[Phil Sainty]

On 2019-10-14 14:48, Lars Ingebrigtsen wrote:
> jidanni@jidanni.org writes:
>
> > When we hit TAB in *shell* after the word "ssh",
> >
> > * there are no messages about where in the world it is getting its
> >   completions. Unlike dabbrev-expand.
>
> That is pretty mysterious behaviour; yes.  Would flashing a message
> saying "Looking for host names in ~/.ssh/known_hosts and ~/.ssh/config"
> be helpful?

I think it would be nicer if the *Completions* buffer text explained it.

i.e. additional information added to this:

"Click on a completion to select it.
In this buffer, type RET to select the completion near point.

Possible completions are:"

That's mostly from `completion-setup-function'.  Perhaps that could be
made to incorporate text from a new var, which could then be bound
dynamically in cases where extra context was desirable?


-Phil