bug#3936: 23.0.96; doc string of called-interactively-p

> > "Return t if the function using this was called with
> > `call-interactively'."
> 
> I replaced this by :
> 
>   Return t if it is in a function called with `call-interactively'.

That's just as bad. What's "it"?

I really don't understand what you are trying to say. When does
`called-interactively-p' return t? It should be possible to describe that
condition. What does the code say?