MAN: sssd-sudo manual update IPA native LDAP tree support
Update sssd-sudo man page to reflect native IPA sudo support
Resolves:
https://fedorahosted.org/sssd/ticket/3145
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>