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

[D. Hugh Redelmeier]

New commits:
commit 3fc3187dcee16c2a6064109b02b5d750a236a7a4
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Tue May 21 13:21:58 2019 -0400

    pluto: kernel.c: simplify lset examination