change selected="selected" for Keep Forever

[GoogleCodeExporter]

I managed to make checked="checked" for Private to make the checkbox selected 
by default for Private by adding 'checked' => 'checked' into the $set array of 
Private.

But tried to locate where does it have selected="selected" for the first array 
entry "0" => "Keep Forever" but wasn't able to find it.

i tried to play with this from the system/application/controllers/main.php
                                        $user_data = array(
                                                        'name' => '',
                                                        'lang' => 'php',
                                                        'expire' => '0',
                                                        'acopy' => '0',
                                                        'snipurl' => '0',
                                                        'private' => '0',
                                                        'remember' => '0'
but still didn't take any effect (even if i update php to python doesn't take 
effect)

sorry of the issue is divided into two issues but finding one would resolve the 
other :)

Thanks

Original issue reported on code.google.com by bas...@gmail.com on 13 Mar 2013 at 3:48