GH31391 - Fixed typos and fixed inexistant path in a SAS class comment
Simple change: just fixed some typos and incorrect path as reported in #31391 
Thanks, @jeandersonbc !

I don't think we would typically update an old whatsnew note, could you please revert that one to how it is on the master branch? > I don't think we would typically update an old whatsnew note,

@TomAugspurger whats the policy on this? I don’t think we have one. What would you recommend?

> On Jan 28, 2020, at 18:33, jbrockmendel <notifications@github.com> wrote:
> 
> ﻿
> I don't think we would typically update an old whatsnew note,
> 
> @TomAugspurger whats the policy on this?
> 
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 I think for legitimate typos we're OK retroactively fixing. thanks @jeandersonbc 