Switch a few tests from is to a more sensible is_approx.
Switch a few tests from is to a more sensible is_approx.

skids/roast,zostay/roast,niner/roast,skids/roast,b2gills/roast,niner/roast,cygx/roast,dogbert17/roast,dankogai/roast,laben/roast,dankogai/roast,dankogai/roast,b2gills/roast,laben/roast,cygx/roast,bitrauser/roast,b2gills/roast,bitrauser/roast,zostay/roast,skids/roast,dogbert17/roast,perl6/roast,cygx/roast,laben/roast,niner/roast,zostay/roast