Remove unneeded inverse sub test, and use a better information string for the surviving equivalent test.
Remove unneeded inverse sub test, and use a better information string for the surviving equivalent test.

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