[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit c57088adefe6da0fa936396a7654b5f16f3e6cb6
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Feb 21 16:08:42 2020 -0500

    kernel: add kernel_ops.shutdown(), for xfrm bind it to free_xfrmi_ipsec1()
    
    And call it from exit_pluto().