[Rd] Small typo in list.Rd

[Hin-Tak Leung]

Gregor Gorjanc wrote:
> Hello!
> 
> There is a tiny typo in list.Rd.
> 
> Index: R/src/library/base/man/list.Rd
> ===================================================================
> --- ../man/list.Rd      (revision 38909)
> +++ ../man/list.Rd      (working copy)
> @@ -59,7 +59,7 @@
>    inconsistent with functions such as \code{\link{as.character}}, and is
>    for efficiency since lists can be expensive to copy.)
> 
> -  \code{is.list} returns \code{TRUE} iff its argument
> +  \code{is.list} returns \code{TRUE} if its argument
> 

Those are not typo's - (there are two "iff"'s in that paragraph).
"iff" is a short-hand for "if and only if", in some culture.

HTL