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

[Andrew Cagney]

New commits:
commit 90177e3b0e02c034caf2d2c5316e3db3d49a3298
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sat Nov 20 23:01:49 2021 -0500

    iface: refcnt struct iface_endpoint
    
    replaces TCP specific code deleting .st_interface with
    the more generic delref.

commit 522a8e96c69f12edda118967cba8ef95156b2153
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun Nov 21 19:35:23 2021 -0500

    shutdown: shutdown demux.c before server.c

commit 38d99799d901aabc51854febbbfff936308dab9d
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun Nov 21 15:32:32 2021 -0500

    refcnt: addref() -> addref_where(ref, where) et.al.
    
    drop repref(), unused