Adds quality spec
Adds quality spec

  - Spec will fail if Thor contains malformed whitespace
  - Spec will fail if Thor's tests use inconsistent quote styles (Thor
    prefers double-quotes)
  - Run with: rspec spec/quality_spec.rb

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