Change the order of parameters of Fqdn.get_unique()
Change the order of parameters of Fqdn.get_unique()

This makes Fqdn.get_unique(session, 'foo.bar.ms.com') work as expected.

Reviewed-By: Wesley Hertlein <ca32100e9f664971b15d1470ddc7f009d907efd3@morganstanley.com>

quattor/aquilon,stdweird/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon,stdweird/aquilon,guillaume-philippon/aquilon