I get no warnings in Perl 5.6.0, 5.6.1, 5.8.0 and 5.8.8 (although the output is different in the first 3).
What version of Perl are you using?
Are you sure you didn't use perl -w script.pl?

In reply to Re: Use of uninitialized value in formline? by ikegami
in thread Use of uninitialized value in formline? by MaxKlokan

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