[Libvir] [PATCH]: Make iSCSI login actually work

Hello, I mentioned this before, but this patch must have been dropped when Dan committed storage stuff to CVS. In order for iSCSI login to work properly, you must properly --sendtargets before trying to login, otherwise your logins will fail. This patch just adds a --sendtargets command right before the login to make sure things succeed. Signed-off-by: Chris Lalancette <clalance(a)redhat.com&gt;