Comment 10 for bug 550157

Test case:

Wrong result with old package:

$ LANG= TZ=Africa/Tunis date
Tue Apr 6 10:22:29 CEST 2010

$ zdump -v -c 2008,2011 Africa/Tunis
Africa/Tunis Sun Mar 30 00:59:59 2008 UTC = Sun Mar 30 01:59:59 2008 CET isdst=0 gmtoff=3600
Africa/Tunis Sun Mar 30 01:00:00 2008 UTC = Sun Mar 30 03:00:00 2008 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 26 00:59:59 2008 UTC = Sun Oct 26 02:59:59 2008 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 26 01:00:00 2008 UTC = Sun Oct 26 02:00:00 2008 CET isdst=0 gmtoff=3600
Africa/Tunis Sun Mar 28 00:59:59 2010 UTC = Sun Mar 28 01:59:59 2010 CET isdst=0 gmtoff=3600
Africa/Tunis Sun Mar 28 01:00:00 2010 UTC = Sun Mar 28 03:00:00 2010 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 31 00:59:59 2010 UTC = Sun Oct 31 02:59:59 2010 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 31 01:00:00 2010 UTC = Sun Oct 31 02:00:00 2010 CET isdst=0 gmtoff=3600

Correct result with new package:

$ LANG= TZ=Africa/Tunis date
Tue Apr 6 09:24:00 CET 2010

$ zdump -v -c 2008,2011 Africa/Tunis
Africa/Tunis Sun Mar 30 00:59:59 2008 UTC = Sun Mar 30 01:59:59 2008 CET isdst=0 gmtoff=3600
Africa/Tunis Sun Mar 30 01:00:00 2008 UTC = Sun Mar 30 03:00:00 2008 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 26 00:59:59 2008 UTC = Sun Oct 26 02:59:59 2008 CEST isdst=1 gmtoff=7200
Africa/Tunis Sun Oct 26 01:00:00 2008 UTC = Sun Oct 26 02:00:00 2008 CET isdst=0 gmtoff=3600