
By default the oidc apache2 plugin uses
comma, but Keystone expects a semicolon [1,2].
This is necessary when writing multi-valued
data (such as OIDC-groups) for Keystone to consume.
[1] 187bcad522/keystone/federation/utils.py (L515)
[2] https://docs.openstack.org/keystone/latest/admin/federation/mapping_combinations.html#mappings-examples
Closes-bug: #2085727
Change-Id: I179ac68a463866c4efaa7c9259a247bf4dc3b573