Updated openstack/openstack
Project: openstack/python-heatclient  3bd4d7aa47c06afbb1a917c6600fac1c41556c11
null
Improve help strings

Follow oslo.config style guide for help strings better to create
consistent help strings:
* Finish help strings with "."
* Fix capitalization in one example
* Fix wording (use "by a semicolon")

Change-Id: I402401509481ce18bac333cd6d96554d64725b57