Fix 8742: The pre update is now executed

update.php

@@ -512,7 +512,7 @@ function update_1351()
 
 function pre_update_1354()
 {
-	if(DBStructure::existsColumn('contact', 'ffi_keyword_blacklist')
+	if (DBStructure::existsColumn('contact', ['ffi_keyword_blacklist'])
 		&& !DBA::e("ALTER TABLE `contact` CHANGE `ffi_keyword_blacklist` `ffi_keyword_denylist` text null")) {
 		return Update::FAILED;
 	}