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Problem with unless statement

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From:
sono-io
Date:
April 28, 2012 07:16
Subject:
Problem with unless statement
Message ID:
5CF59E24-362F-4102-896C-E71552E2CE51@fannullone.us
	I'm having a problem with the following code:

#!/usr/bin/perl
use strict;
use warnings;

my $xtra = 'mail.example.com';

my $host = 'localhost' unless (defined ($xtra));

print $host;

	I get the message "Use of uninitialized value $host in print".  Does anyone know why this doesn't work?

Thanks,
Marc
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