fix database names introspection for SQL Server

lib/Doctrine/DBAL/Platforms/SQLServerPlatform.php

@@ -675,7 +675,7 @@ class SQLServerPlatform extends AbstractPlatform
      */
     public function getListDatabasesSQL()
     {
-        return 'SELECT * FROM SYS.DATABASES';
+        return 'SELECT * FROM sys.databases';
     }
 
     /**

tests/Doctrine/Tests/DBAL/Platforms/SQLServerPlatformTest.php

@@ -84,7 +84,7 @@ class SQLServerPlatformTest extends AbstractPlatformTestCase
     {
         $dropDatabaseExpectation = 'DROP DATABASE foobar';
 
-        $this->assertEquals('SELECT * FROM SYS.DATABASES', $this->_platform->getListDatabasesSQL());
+        $this->assertEquals('SELECT * FROM sys.databases', $this->_platform->getListDatabasesSQL());
         $this->assertEquals('CREATE DATABASE foobar', $this->_platform->getCreateDatabaseSQL('foobar'));
         $this->assertEquals($dropDatabaseExpectation, $this->_platform->getDropDatabaseSQL('foobar'));
         $this->assertEquals('DROP TABLE foobar', $this->_platform->getDropTableSQL('foobar'));