Remove inline if clauses

MD_STD_CACHE.php

@@ -48,7 +48,9 @@ public static function shutdown_cache_through_redis(string $redisKey, int $expir
      */
     public static function serve_page_through_redis_cache(string $redisKey, int $expiry = 3600):string {
 
-        if (PHP_SAPI === 'cli') return '';
+        if (PHP_SAPI === 'cli') {
+            return '';
+        }
 
         $redis = new Redis();
         $redis->connect(self::$redis_host, self::$redis_port, 1, null, 0, 0, ['auth' => [MD_CONF::$redis_pw]]);