bug#18317: 24.4.50; doc string of `find-file-literally'

[Drew Adams]

> > Please describe the parameters to the function.
> >
> > If you want to refer users to another function, where these are defined,
> > that's OK too.
> 
> There's only one parameter, and it's documented.  Closing.

Sorry, there was a typo in the Subject line.
This is about function `insert-file-contents-literally',
not function `find-file-literally'.

(Probably a yank error. Sorry.)

There are 5 parameters for `insert-file-contents-literally'.
I think it would be enough to say explicitly that the args
are the same as for `insert-file-contents' (in addition to
the behavior being "like `insert-file-contents', but...").