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

[D. Hugh Redelmeier]

New commits:
commit 29b74dac7177d2ba75cd7d97380e57fe44aa870b
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Sun May 26 14:15:38 2019 -0400

    pluto: virtual.c: clarify comments about syntax of leftsubnet= virtual denotation