Fix installation of Heroku when using Homebrew
Fix installation of Heroku when using Homebrew

thoughtbot/shoulda-matchers,biow0lf/shoulda-matchers,reacuna/shoulda-matchers,thoughtbot/shoulda-matchers,biow0lf/shoulda-matchers,reacuna/shoulda-matchers,guialbuk/shoulda-matchers,biow0lf/shoulda-matchers,guialbuk/shoulda-matchers,thoughtbot/shoulda-matchers,thoughtbot/shoulda-matchers,guialbuk/shoulda-matchers,biow0lf/shoulda-matchers,guialbuk/shoulda-matchers,reacuna/shoulda-matchers,reacuna/shoulda-matchers