another formating fix

contrib/mariadb-stretch-err1071.md

@@ -17,13 +17,12 @@ There are several possible workarounds for the problem:
 
  * Use `utf8` (not `utf8mb4`). Either by setting `store.db.Charset` to `utf8` or by
    creating the database using this command:
-
    ```mysql
 create database tank CHARACTER SET utf8 COLLATE utf8_general_ci;
    ```
 
    Setting the character set using the daemon configuration is preferred because this also
-   sets makes sure that the database connection itself will use the correct settings as well.
+   makes sure that the database connection itself will use the correct settings as well.
 
    Mind that this means you won't be able to use Emoji's in File Metadata. 😭