Some bug-fixing

[Vsevolod Novikov]

To whom it will concern,

I've downloaded your tz code and tried to make it. My compiler (gcc 
2.95.4) has found some errors in the code. The patch is attached.
See for instance ISO/IEC 9899:1999(E) C Standart Second Edition 1999-12-01.

6.5.3 Unary operators
Syntax
1 unary-expression:
    postfix-expression
    ++ unary-expression
    -- unary-expression
    unary-operator cast-expression
    sizeof unary-expression
    sizeof ( type-name )

The best regards,
Vsevolod Novikov
Programmer
Consul-Incom Ltd.
Russia
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