- help( 1, 'Missing value for latest' ) unless ( exists( $opt{latest} ) && defined( $opt{latest} ) );
- help( 1, 'Invalid value for latest' ) unless $opt{latest} =~ /^\d+(?:\.\d+)*$/;
+ error_help('Missing value for latest') unless ( exists( $opt{latest} ) && defined( $opt{latest} ) );
+ error_help('Invalid value for latest') unless $opt{latest} =~ /^\d+(?:\.\d+)*$/;