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

[Andrew Cagney]

New commits:
commit 32c0c15e4a16b68a596ac3f9f8838daa174cd0da
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sat Feb 13 11:48:10 2021 -0500

    ip: in jam_<type>() use <type>_is_unset() instead of <type> == NULL
    
    and change text to <unset-...> (it should only ever appear in
    debug output).