def after_packaging
      suffixes = chunk_suffixes
      first_suffix = "a" * suffix_length
      if suffixes == [first_suffix]
        FileUtils.mv(
          File.join(Config.tmp_path, "#{package.basename}-#{first_suffix}"),
          File.join(Config.tmp_path, package.basename)
        )
      else
        package.chunk_suffixes = suffixes
      end
    end
def after_packaging
      suffixes = chunk_suffixes
      first_suffix = "a" * suffix_length
      if suffixes == [first_suffix]
        FileUtils.mv(
          File.join(Config.tmp_path, "#{package.basename}-#{first_suffix}"),
          File.join(Config.tmp_path, package.basename)
        )
      else
        package.chunk_suffixes = suffixes
      end
    end
Finds the resulting files from the packaging procedure
 and stores an Array of suffixes used in @package.chunk_suffixes.
 If the @chunk_size was never reached and only one file
 was written, that file will be suffixed with '-aa' (or -a; -aaa; etc
 depending upon suffix_length). In which case, it will simply
 remove the suffix from the filename.