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

[Andrew Cagney]

New commits:
commit d846f7f6b129b41d081930e6d44846090ae757ec
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue Dec 14 12:50:04 2021 -0500

    connections: reject {left,right}=ipv4,leftsubnet=ipv6
    
    i.e., rightsubnet defaults to ${left} causing a conflict
    
    fix #540