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

[Andrew Cagney]

New commits:
commit b1893c48781b2e447a20aa1932b887d1dc9c6e4d
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Jul 20 10:24:56 2020 -0400

    logging: add a tool logger
    
    Sends ERROR_STREAM to stderr; and when verbose, log stream to
    stdout.