Use @wraps decorator
Use @wraps decorator

Use @wraps decorator from the functools library.
This calls the update_wrapper method from functools
which sets these built-in values to those of the wrapped function.

Change-Id: Ie5a6cd71db5cc645c7fc7d1a5bcad5f0bcf651fd

cisco-openstack/tempest,openstack/tempest,vedujoshi/tempest,vedujoshi/tempest,Tesora/tesora-tempest,Juniper/tempest,sebrandon1/tempest,bigswitch/tempest,cisco-openstack/tempest,sebrandon1/tempest,bigswitch/tempest,Juniper/tempest,Tesora/tesora-tempest,masayukig/tempest,openstack/tempest,masayukig/tempest