[tz] zic tweak to warn about non-ASCII in filenames

[Garrett Wollman]

On June 25, 2014 7:37:28 PM EDT, Arthur David Olson <arthurdavidolson at gmail.com> wrote:
>To help ensure that non-ASCII characters don't appear in distribution
>filenames,
>changes to zic.c so that the "-v" option warns about them. Both
>attached and
>tab-mangled below.

It would be better to explicitly check against the Portable File Name Character Set.

-GAWollman