*** a.txt       2007-10-15 22:38:51.000000000 +0100
--- b.txt       2007-10-15 22:41:38.000000000 +0100
***************
*** 1,6 ****
! Hello, World!
! -------------

  Some interesting stuff to read. Some interesting stuff to read. Some
  interesting stuff to read. Some interesting stuff to read. Some interesting
  stuff to read. Some interesting stuff to read.
--- 1,8 ----
! Hello, Universe!
! ================

  Some interesting stuff to read. Some interesting stuff to read. Some
  interesting stuff to read. Some interesting stuff to read. Some interesting
  stuff to read. Some interesting stuff to read.
+
+ Some really crazy ideas about ruling the world and conquering the Universe.