Change man page examples to correlate default v2
Change man page examples to correlate default v2

Changing examples to correlate default behavior (v2 API) rather than
old v1 options.

Change-Id: I13a0d6040bfcd246189e0c1aeadf104ff5eff131

openstack/python-glanceclient,openstack/python-glanceclient,klmitch/python-glanceclient,klmitch/python-glanceclient