Updated openstack/openstack
Project: openstack/ceilometer  7d1164d28dba79aaa6e398a097dabebd3cb7c403
null
Correct env variable in file oslo.config.generator.rc

Use CEILOMETER_CONFIG_GENERATOR_EXTRA_MODULES as the environment
variable to include keystoneclient middleware's option in the config
generator's output.

Change-Id: Ibddeb587b22a0569dcb8db58d7cd8626b4482cb6
Closes-Bug: 1262331