Updated openstack/openstack
Project: openstack/oslo.config  125711997eb3d9fd6894463b1c8513181e215e7c

Refactored help string generation

Refactored code to generate configuration help strings into its
own private function. The motivation is to use the same function
to generate help strings for both configuration parameters
(existing functionality) and parameter groups (to be added).

Partial-Bug: #1395819

Change-Id: I2c0fd50d50081c633fb50e89eb8c6a84d948f7cc