bug#9614: date ignoring wrong TZ values

[Paul Eggert]

Assaf Gordon wrote:

> gnulib's tzalloc implementation should be greatly expanded to be able
> to decode the operating system's local timezome?
> (or perhaps the timezone management code copied from glibc?)

That's what I was thinking of, except that it'd be better to extend glibc to 
support tzalloc etc. That code could be shared between glibc and gnulib.