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

[Andrew Cagney]

New commits:
commit 4c2ced2eb333e4f12e44e6730e8a1e3d8b32ecd6
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Mar 5 09:14:48 2021 -0500

    ip: add/use selector_subnet_is_address()