generate_bin_script (Gem::Installer)

    # File lib/rubygems/installer.rb, line 347
      def generate_bin_script(filename, bindir)
        bin_script_path = File.join bindir, formatted_program_filename(filename)

        exec_path = File.join @gem_dir, @spec.bindir, filename

        # HACK some gems don't have #! in their executables, restore 2008/06
        #if File.read(exec_path, 2) == '#!' then
          FileUtils.rm_f bin_script_path # prior install may have been --no-wrappers

          File.open bin_script_path, 'w', 0755 do |file|
            file.print app_script_text(filename)
          end

          say bin_script_path if Gem.configuration.really_verbose

          generate_windows_script bindir, filename
        #else
        #  FileUtils.rm_f bin_script_path
        #  FileUtils.cp exec_path, bin_script_path,
        #               :verbose => Gem.configuration.really_verbose
        #end
      end