Change test names to be easier to understand
Change test names to be easier to understand

I had some problems when doing the exercice because of the DST. I think
more explicit method's name should help.

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