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

[D. Hugh Redelmeier]

New commits:
commit f703f4d32ab4d01199f7755fde1a193d96e881c5
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Sat Sep 9 10:33:04 2023 -0400

    confread: convince Clang that a variable is not NULL
    
    Too bad there isn't a type annotation to declare that a pointer will never be NULL.