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

[D. Hugh Redelmeier]

New commits:
commit cf919e16683a941dedde8641ebaeb174fde912cf
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Thu Mar 4 21:04:18 2021 -0500

    pluto: consistently test for empty security labels by checking .len
    
    This was mostly the case but not universal.