Fix specs on Ruby 2.0.0
Fix specs on Ruby 2.0.0

doudou/thor,groovenauts/thor,b-dean/thor,linkodehub/thor,fancyremarker/thor,fhernandez173/thor,fhernandez173/thor,sideci-sample/sideci-sample-thor,flyinbutrs/thor,r7kamura/thor,groovenauts/thor,linkodehub/thor,b-dean/thor,erikhuda/thor,segiddins/thor,segiddins/thor,r7kamura/thor,sideci-sample/sideci-sample-thor,flyinbutrs/thor,fancyremarker/thor