def issues_url
      if spec.metadata['issues_url']
        spec.metadata['issues_url']
      elsif spec.homepage =~ /^http(s)?:\/\/(www\.)?github\.com/
        spec.homepage.chomp('/') + '/issues'
      end
    end
def issues_url
      if spec.metadata['issues_url']
        spec.metadata['issues_url']
      elsif spec.homepage =~ /^http(s)?:\/\/(www\.)?github\.com/
        spec.homepage.chomp('/') + '/issues'
      end
    end
URL to the issue tracker for this project.

 @return [String, nil]