[rx.t] fix test that assumed non-LTM
[rx.t] fix test that assumed non-LTM

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