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

[D. Hugh Redelmeier]

New commits:
commit 5c7cf5c8cd91f095aacbbc64823ef4d28bedcfac
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Wed Sep 4 12:45:00 2019 -0400

    ip_address.h, ip_endpoint.h: improve grammar in comments