Update config.sample.php

config/config.sample.php

@@ -142,7 +142,7 @@ $CONFIG = array(
 'allow_user_to_change_display_name' => true,
 
 /* Check 3rdparty apps for malicious code fragments */
-"appcodechecker" => false,
+"appcodechecker" => true,
 
 /* Check if ownCloud is up to date */
 "updatechecker" => true,