Merge "setup.cfg: Replace dashes with underscores"

Author: Zuul

setup.cfg

@@ -1,12 +1,12 @@
 [metadata]
 name = python-openstackclient
 summary = OpenStack Command-line Client
-description-file =
+description_file =
     README.rst
 author = OpenStack
-author-email = openstack-discuss@lists.openstack.org
-home-page = https://docs.openstack.org/python-openstackclient/latest/
-python-requires = >=3.6
+author_email = openstack-discuss@lists.openstack.org
+home_page = https://docs.openstack.org/python-openstackclient/latest/
+python_requires = >=3.6
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology