Simplify test to avoid need fo multiline regexp

Signed-off-by: Michal Čihař <michal@cihar.com>

test/libraries/PMA_operations_test.php

@@ -77,9 +77,11 @@ class PMA_Operations_Test extends PHPUnit_Framework_TestCase
     {
 
         $_REQUEST['db_collation'] = 'db1';
+        $html = PMA_getHtmlForRenameDatabase("pma");
+        $this->assertContains('db_operations.php', $html);
         $this->assertRegExp(
-            '/.*db_operations.php(.|[\\n])*db_rename([\\n]|.)*Rename database to.*/m',
-            PMA_getHtmlForRenameDatabase("pma")
+            '/.*db_rename.*Rename database to.*/',
+            $html
         );
     }