[tz] [PATCH 1/1] Document tzselect std out redirection

[Paul Eggert]

J William Piggott wrote:

> How can a TZ string define ones political preference?

For example, if you live in Xinjiang, your political preference is related to 
whether you should use TZ=Asia/Shanghai or TZ=Asia/Urumqi. Both zones are 
"correct" in some sense for that location.  tzselect attempts to avoid political 
issues, and so won't give you advice about which setting to use.

As for documenting the tzselect stderr behavior, I'm mildly inclined to leave 
the exact output sequence undocumented, as I don't think applications should 
depend on such implementation details.