def license_file_path(path = NULL)
      if null?(path)
        @license_file_path || File.join(install_dir, "LICENSE")
      else
        @license_file_path = File.join(install_dir, path)
      end
    end
def license_file_path(path = NULL)
      if null?(path)
        @license_file_path || File.join(install_dir, "LICENSE")
      else
        @license_file_path = File.join(install_dir, path)
      end
    end
Location of license file that omnibus will create and that will contain
 the information about the license of the project plus the details about
 the licenses of the software components included in the project.

 If no path is specified  install_dir/LICENSE is used.

 @example
   license_file_path

 @return [String]