[tz] Recent conversions of zones to aliases

[Alan Barrett]

On Mon, 17 Nov 2014, Stephen Colebourne wrote:
>And 2014j causes yet another bug downstream
>https://bugs.openjdk.java.net/browse/JDK-8064914

The zic(8) man page, which serves as documentation for the format
of the input files, says:

        The LINK-FROM field should appear as the NAME field in some
        zone line.

To me, this means that a Link should not point to another Link, 
but should point to a Zone.  This combination of links would 
appear to violate that requirement:

        Zone Africa/Nairobi ...
        Link Africa/Nairobi Africa/Asmara
        Link Africa/Asmara Africa/Asmera

--apb (Alan Barrett)