- log_error("Cannot create display '%s' on '%s': %s",
- grdev_display_get_name(display), sysview_session_get_name(s->sysview), strerror(-r));
+ log_error_errno(r, "Cannot create display '%s' on '%s': %m",
+ grdev_display_get_name(display), sysview_session_get_name(s->sysview));