Fix mysql server wait_timeout regexp attribute

Author: guicapanema

web/templates/admin/edit_server_mysql.html

@@ -80,7 +80,7 @@
                             </tr>
                             <tr>
                                 <td>
-                                    <input type="text" size="20" class="vst-input" regexp="memory_limit" prev_value="<?=htmlentities($v_wait_timeout)?>" name="v_wait_timeout" value="<?=htmlentities($v_wait_timeout)?>">
+                                    <input type="text" size="20" class="vst-input" regexp="wait_timeout" prev_value="<?=htmlentities($v_wait_timeout)?>" name="v_wait_timeout" value="<?=htmlentities($v_wait_timeout)?>">
                                     <br><br>
                                 </td>
                             </tr>
@@ -141,4 +141,4 @@
                 </tr>
             </table>
         </form>
-    </div>
+    </div>