[tz] disclaimer removals

[Christos Zoulas]

On Jun 26,  3:53pm, abbotti at mev.co.uk (Ian Abbott) wrote:
-- Subject: Re: [tz] disclaimer removals

| I believe you replied to the wrong thread, but isascii() should be
| defined for all integer values:
| 
| http://pubs.opengroup.org/onlinepubs/009695399/functions/isascii.html
| 
| and the code only calls isalnum() if isascii() returns a non-zero value.

While this is true, you still get a warning that claims that your array
is indexed by a char value on implementations with inline isfoo() functions
that reference a _ctype_ array. So it is always good to fix it.

christos