Log Message:
Update to 4.0.3. From the changelog:

  -some types of socket errors would raise an exception instead of letting
  getmail gracefully continue; fixed.  Thanks: David.
  -documentatation updates; fix two typos and add to the section on using
  ClamAV with getmail.
  -changes to my release process; the current version's URL will not change
  when a new version is released.  See, I try to help others, even when they
  don't do the same...