print_list(): do not call decode() on a text string
print_list(): do not call decode() on a text string

In Python3, we already have a text string at this point of the code, so there
is no need to try and decode it.

Change-Id: I21d35529a5a2d8d7e1a3266e4d16e9b31ffe7470

citrix-openstack-build/python-saharaclient,citrix-openstack-build/python-saharaclient,openstack/python-saharaclient,citrix-openstack-build/python-saharaclient