[CRaC/criu] b3a210: Silence irrelevant iptables error

[Anton Kozlov]

  Branch: refs/heads/crac
  Home:   https://github.com/CRaC/criu
  Commit: b3a210513e5a76ba9c8d906d2460c11ec7ac4cb1
      https://github.com/CRaC/criu/commit/b3a210513e5a76ba9c8d906d2460c11ec7ac4cb1
  Author: Anton Kozlov <akozlov at azul.com>
  Date:   2022-03-31 (Thu, 31 Mar 2022)

  Changed paths:
    M criu/netfilter.c

  Log Message:
  -----------
  Silence irrelevant iptables error