add sprintf tests from RT tickets
add sprintf tests from RT tickets

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