Updated openstack/openstack
Project: openstack/tempest  1217da0f0bca2649da9bc2cf303205f812b7d611
null
Separate negative tests for test_image_metadata

Move negative tests from test_image_metadata.py to
test_image_metadata_negative.py

Partially implements blueprint negative-test-files

Change-Id: Ic046e8a8aa4e8055ba9536462f213dba0b2adcc4