bug#10783: Some built-in functionslost their argument names

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: 10783@debbugs.gnu.org,  schwab@linux-m68k.org
> Date: Sun, 12 Feb 2012 00:14:23 -0500
> 
> -On Nextstep, FRAME is unused."
> +On Nextstep, FRAME is unused.
> +
> +\(fn SELECTION VALUE &optional FRAME)"
>    (ignore-errors
>      (x-select-text value))
>    value)

OK, I will do that for DOS-related Lisp functions that shadow C
primitives.