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

[Andrew Cagney]

New commits:
commit 4ce97e6b8b0091177a936a5c7a2784b8d5291c1c
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Sep 14 16:56:43 2017 -0400

    logging: don't dump core when concatenating a NULL string
    
    was causing IKEv2 to crash; an enum-name lookup on a bogus value
    returned NULL.