[tz] Re: Add ICU's Etc/Unknown Zone to IANA Time Zone Database?

On 2024-12-08 23:52, Paul Eggert wrote:

I suspect we'll need to distinguish 'zdump "-"' (where reading from stdin could be useful) from TZ="-" (where we surely don't want a program to read from standard input merely because it wants the time of day and someone used a squirrelly TZ string).

I did that by installing the attached proposed further patch.