fix undefined value
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c26ed55921
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ccb0fd820f
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@ -139,8 +139,8 @@ sub output {
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if (defined($self->{closure_custom_output})) {
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return $self->{closure_custom_output}->($self);
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}
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my $first = ${${$self->{key_values}}[0]}{name};
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my ($value, $unit) = ($self->{result_values}->{$first . '_absolute'}, $self->{output_absolute_unit});
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my $first = $self->{key_values}->[0]->{name};
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my ($value, $unit) = (defined($first) ? $self->{result_values}->{$first . '_absolute'} : '', $self->{output_absolute_unit});
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if (!defined($self->{output_use})) {
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if ($self->{per_second} == 1) {
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