Description:
------------
Since upgrading from php 5.2.6 to php 5.2.8 I have a problem with 
imap_rfc822_parse_adrlist. When I run the example given on the manual 
page at http://nl3.php.net/imap_rfc822_parse_adrlist, the host part 
sometimes returns junk.


Reproduce code:
---------------
$adds = 'ian eiloart <iane@example.ac.uk>,
      shuf6@example.ac.uk,
      blobby,
      "ian,eiloart"<ian@example.ac.uk>,
      <@example.com:foo@example.ac.uk>,
      foo@#,
      ian@-example.com,
      ian@one@two';
$add_arr = imap_rfc822_parse_adrlist($adds, 'example.com');
var_export ($add_arr);

Expected result:
----------------
...
2 =>
class stdClass {
  var $mailbox = 'blobby';
  var $host = 'example.ac.uk';
},
...


Actual result:
--------------
...
2 =>
stdClass::__set_state(array(
   'mailbox' => 'blobby',
   'host' => 'p?a(',
)),
...