What is the format of the SSSD ldap_uri parameter?

Issue

• The sssd-ldap man page says the following:

ldap_uri (string)
           Specifies the list of URIs of the LDAP servers to which SSSD should connect in the order of preference. Refer to the “FAILOVER”
           section for more information on failover and server redundancy. If not specified, service discovery is enabled. For more
           information, refer to the “SERVICE DISCOVERY” section.</code>

• It does not specify what this list is composed of
• NSCD used a space separated list. However, SSSD uses a comma  separated list and does not accept a space separated list.