Update bare exceptions to specify Exception.

This will keep us from accidentally catching program-exiting exceptions
like KeyboardInterupt and SystemExit.

lib/ansible/modules/cloud/openstack/os_user_facts.py

@@ -135,7 +135,7 @@ def main():
                 # We assume admin is passing domain id
                 dom = opcloud.get_domain(domain)['id']
                 domain = dom
-            except:
+            except Exception:
                 # If we fail, maybe admin is passing a domain name.
                 # Note that domains have unique names, just like id.
                 dom = opcloud.search_domains(filters={'name': domain})