Fix timing issue in iqn set on create-from-snapshot in Essex

gistfile1.diff

➜  mercado  diff san.py ~/Downloads/san.py
32d31
< import time
962c961
<
---
>         volume_list = self._get_volumes_by_sfaccount(sf_account['accountID'])
964,974c963,966
<         while iqn is None:
<             volume_list = self._get_volumes_by_sfaccount(sf_account['accountID'])
<             for v in volume_list:
<                 if v['volumeID'] == volume_id:
<                     LOG.debug(_("matched internal id: %s") % volume_id)
<                     iqn = v['iqn']
<                     if iqn is None:
<                         LOG.warning(_("Matched, but IQN wasn't set, "
<                                       "requerie in 1 second..."))
<                         time.sleep(1)
<                     break
---
>         for v in volume_list:
>             if v['volumeID'] == volume_id:
>                 iqn = v['iqn']
>                 break
➜  mercado