[spec] fixed tests for return of failed Str.index(). bacek++, pmichaud++
[spec] fixed tests for return of failed Str.index(). bacek++, pmichaud++


git-svn-id: 53605643c415f7495558be95614cf14171f1db78@21153 c213334d-75ef-0310-aa23-eaa082d1ae64

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