[tz] [PATCH] Replace Africa zones with links when that doesn't lose useful info.

[Paul Eggert]

Alan Barrett wrote:
> To the best of my knowledge, most other African countries that share the
> same UTC offset do not use the abbreviation "SAST"

Thanks for catching this; this was indeed an error in the merge, and 
I'll prepare a patch shortly that reverts to the previous behavior here 
as well.