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

[Andrew Cagney]

New commits:
commit 8e1571160169e607ffa91043a53d73fc5649ec6d
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Mar 22 18:57:20 2021 -0400

    whack: default the client subnet to unset_subnet
    
    .. rather than ::/128 et.al. - less ambigious

commit 6eb62f81e07a36fca38a82a2eacd51e64fe4055f
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sat Mar 20 11:25:54 2021 -0400

    ip: fill in missing ip_range tests and functions
    
    - drop range_is_specified(), just use range_size() > 0
    - don't treat :: | 0.0.0.0 special
    - add/simplify compare functions