Updated openstack/openstack
Project: openstack/oslo.log  521b3bde9dcba14961e6e92eb64de5d2e40a3bbd

fix typo and formatting in contributing docs

Change-Id: Ie53eb4d2e85601feb281c57c569048e2c533320a
Updated openstack/openstack
Project: openstack/oslo.log  b735108d26beb4e870cf9421e5102b2a54f8106a

log: add missing space in error message

Change-Id: If3094c28f500dc189dbbcd15926e71ece9e7fde3