Ruby accumulate spec typo.
Ruby accumulate spec typo.

tommyschaefer/xruby,Calvyn82/xruby,mamenama/xruby,jdsayle/xruby,NeimadTL/ruby,gchan/xruby,exercism/xruby,samilokan/xruby,kotp/xruby,wobh/xruby,Insti/xruby,samilokan/xruby,NobbZ/xruby,rashmiagar/exercism,rashmiagar/exercism,dalexj/xruby,exercism/xruby,kickinbahk/xruby,dalexj/xruby,remcopeereboom/xruby,Insti/exercism-ruby,NobbZ/xruby,mamenama/xruby,wobh/xruby,Calvyn82/word_count,Calvyn82/xruby,kotp/xruby,kickinbahk/xruby,Insti/exercism-ruby,remcopeereboom/xruby,darrencauthon/xruby,alexbrinkman/xruby,alexbrinkman/xruby,NeimadTL/ruby,NeimadTL/ruby,Insti/xruby,darrencauthon/xruby,gchan/xruby,JordyOne/exercism-practice,Calvyn82/word_count,jdsayle/xruby,Insti/exercism-ruby,tommyschaefer/xruby