autohelp: make sure that oslo.i18n is setup
autohelp: make sure that oslo.i18n is setup

Some module imports fail without a proper setup of oslo.i18n, so make
sure that it is the case for projects using this package.

Change-Id: I7082cb893ccb52fa7bf065a01655efb9a5bbd4e2

openstack/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools