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

[D. Hugh Redelmeier]

New commits:
commit 4dfd1845c3458a2d4f1b79ec49c83c4871bd03d9
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Tue Aug 21 11:37:09 2018 -0400

    pluto: simplify his_id_was_instantiated macro