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

[Andrew Cagney]

New commits:
commit 0f23dcb7bb53776ce35ca8fde2f0161c3709d407
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue Jan 16 13:25:33 2024 -0500

    testing: replace echod.sh with echo-server.sh
    
    - options -4 and -6
    - options -tcp and -udp
    - option -daemon
    
    update tests, fixes:
       need deterministic nc #1466