Fix for blank lines missing in wp-config.php

The plugin seems to work fine, except that it strips all the blank lines from wp-config.php when writing to it. The replacement for function

public static function dbprefix_updateWpConfigTablePrefix($dbprefix_wpConfigFile, $oldPrefix, $newPrefix)

in brozzme_db_prefix_core.php will correct this issue. See below:

public static function dbprefix_updateWpConfigTablePrefix($dbprefix_wpConfigFile, $oldPrefix, $newPrefix)
    {
            // Check file's status' permissions
            if (!is_writable($dbprefix_wpConfigFile))
            {
                    return -1;
            }

            if (!function_exists('file')) {
                    return -1;
            }

            // Try to update the wp-config file
            $lines = file($dbprefix_wpConfigFile);
            $fcontent = '';
            $result = -1;
            foreach($lines as $line)
            {
                    if (strpos($line, '$table_prefix') !== false){
                            $line = preg_replace("/=(.*)\;/", "= '".$newPrefix."';", $line);
                    }
                    $fcontent .= $line;
            }
            if (!empty($fcontent)){
                    // Save wp-config file
                    $result = file_put_contents($dbprefix_wpConfigFile, $fcontent);
            }

            return $result;
    }