Fix for bug #3353811 - Info message has "error" class

tbl_indexes.php

@@ -161,7 +161,9 @@ if (isset($_REQUEST['create_index'])) {
 }
 ?>
     </legend>
-
+<?php
+PMA_Message::notice(__('("PRIMARY" <b>must</b> be the name of and <b>only of</b> a primary key!)'))->display();
+?>
 <div class="formelement">
 <label for="input_index_name"><?php echo __('Index name:'); ?></label>
 <input type="text" name="index[Key_name]" id="input_index_name" size="25"
@@ -176,11 +178,7 @@ if (isset($_REQUEST['create_index'])) {
 <?php echo PMA_showMySQLDocu('SQL-Syntax', 'ALTER_TABLE'); ?>
 </div>
 
-
-<br class="clearfloat" />
-<?php
-PMA_Message::error(__('("PRIMARY" <b>must</b> be the name of and <b>only of</b> a primary key!)'))->display();
-?>
+<br class="clearfloat" /><br />
 
 <table>
 <thead>