Fix a LOG.warning which didn't work properly
Fix a LOG.warning which didn't work properly

Found when checking ci logs here:

http://logs.openstack.org/41/587041/3/check/ironic-inspector-tempest-dsvm-discovery/7912a3a/logs/screen-ironic-inspector.txt.gz#_Oct_17_16_44_39_477744

It's supposed to be printing missing arguments when constructing
an http client.

The http client is supposed to be removed ?soon?, so if the fix is
not required, please let me know.

Change-Id: I2bad387afa2ede56da7164a7bc9a5ac461e78d9c

openstack/python-ironicclient,openstack/python-ironicclient