[tz] [PATCH 2/2] tzselect: -c COORD now supports more ISO 6709 forms

[Alan Barrett]

On Tue, 20 Aug 2013, Paul Eggert wrote:
>* tzselect.ksh (LC_ALL): Don't set this, so that the user can
>use the locale's decimal point in coordinates.
>(convert_coord): Rename from cvt1.  All callers changed.
>Support more ISO 6709 forms.
>* tzselect.8: Document -c better, including the new forms.

Thank you.  I think that covers all the cases I know about, and the
documentation in tzselect.8 is good.

In the usage message in tzselect.ksh, I think it would be useful 
to add another example, showing the use of degrees without 
minutes, and the use of negative signs, something like this:

     COORD should use ISO 6709 notation, for example, '-c +4852+00220'
     for Paris (in degrees and minutes, North and East), or
     '-c -35-058' for Buenos Aires (in degrees, South and West).

--apb (Alan Barrett)