to_s

# File railties/lib/rails/generators/app_base.rb, line 402
        def to_s
          [
            (comment.gsub(/^/, "# ").chomp + "\n" if comment),
            ("# " if commented_out),
            "gem \"#{name}\"",
            *Array(version).map { |constraint| ", \"#{constraint}\"" },
            *options.map { |key, value| ", #{key}: #{value.inspect}" },
          ].compact.join
        end