VERSION - Master process:
  A simple FORTRAN90 program 
  using MPI.
 
  The number of processes is   4
 
  MPI version number is   1
  MPI subversion number is   2
 
  Process   0 says "Hello, world!"
 
VERSION - Master process:
  Normal end of execution: 
  "Goodbye, world!".
 
  Process   1 says "Hello, world!"
 
  Process   2 says "Hello, world!"
 
  Process   3 says "Hello, world!"