tests: remember to clean up in some failure cases of cgroup01

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/live/static/cgroup01.c

@@ -59,7 +59,7 @@ int main(int argc, char **argv)
 		sprintf(paux, "%s/%s/%s.%d", dirname, subname, empty, i);
 		if (mkdir(paux, 0600)) {
 			pr_perror("mkdir %s", paux);
-			return 1;
+			goto out_rs;
 		}
 	}