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

[Andrew Cagney]

New commits:
commit 6d7426192d441b3e8390bf08f75ee634fa467ba5
Author: Andrew Cagney <cagney at gnu.org>
Date:   Wed Mar 10 23:08:01 2021 -0500

    ikev2: cleanup TS code using ranges
    
    make use of new range*() functions (and don't assume internal
    structure of an address range).

commit c0924f719f3764018830ab23ea57c3a2a3f809b9
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Mar 11 11:26:56 2021 -0500

    ikev1: use addresses_to_subnet() which rejects ::-::
    
    replace:
       rangeissubnet()+!subnet_contains_no_addresses()

commit 2513f5176dab0440992c08b1bbe1e018f97ca3b8
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Mar 11 11:26:25 2021 -0500

    ip: add addresses_to_subnet()
    
    unlike rangetosubnet() this rejects ::-::