IPA: Changing of confusing debug message
    
    This debug message used to confuse our users. So this patch changes it.
    Old version: "Trust direction of %s is %s\n"
    New version: "Trust type of [%s]: %s\n"
    
    Resolves:
    https://fedorahosted.org/sssd/ticket/3090
    
    Reviewed-by: Pavel Březina <pbrezina@redhat.com>