[tz] Issue with Africa/Casablanca

[Paul Eggert]

David Gauchard wrote:
> What would you think of an
> additional option like "--near-future" which would always produce not an
> empty description for all timezones ?

If it's that important for newlib perhaps we should just make it the default, 
under the argument that a POSIX-compatible prediction, even if wrong during 
Ramadan, is better than no prediction at all (as that will cause these clients 
to be wrong the whole year).