Updated openstack/openstack
Project: openstack/tempest  c42d0f81f25f7262aa77c0a33b4f068893bbdfad

Change default size for strings to 1

The valid request generator produces by default strings
with value 0, which is an empty string.

Change-Id: I9e7da4ea89faf4785ef94c435c85dc2d244f9839