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

[Andrew Cagney]

New commits:
commit 4db73363305945f9469c9079e94d4e20f9616a5a
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Aug 22 22:17:06 2019 -0400

    ip: simplify address_is_{any,specified}, replace isloopbackaddr() with address_is_loopback()
    
    Use ip_info->*_address.  Update tests.