# File lib/logging/utils.rb, line 184
  def concat( src, dest )
    if File.exist?(dest)
      bufsize = File.stat(dest).blksize || 8192
      buffer = String.new

      File.open(dest, 'a') { |d|
        File.open(src, 'r') { |r|
          while bytes = r.read(bufsize, buffer)
            d.syswrite bytes
          end
        }
      }
    else
      copy_file(src, dest)
    end
  end