scan drives again once initialize is done

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24650 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/drivesetup/MainWindow.cpp

@@ -774,5 +774,7 @@ MainWindow::_Initialize(BDiskDevice* disk, partition_id selectedPartition,
 		_DisplayPartitionError("Failed to initialize the partition "
 			"%s!\n", partition, ret);
 	}
+
+	_ScanDrives();
 }