Log Message:
Update to 6.88

Upstream changes:
6.88  expected 2022-06-01
  -  Time zone fixes
         There were no new timezone fixes on 2022-03-01, so no release made
         then.

         Newest zoneinfo data (tzdata 2022a).

6.87  expected 2022-03-01
  -  Bug fixes
         The package was being generated with an incorrect MANIFEST file.
         This is now fixed. RT 140075