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

[Andrew Cagney]

New commits:
commit 6238ec601457a048956924a65f43cf87c45725da
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun Oct 23 14:59:55 2016 -0400

    pluto: restore serpent - use +=
    
    See d5c6be6ba6c2e4d809c396eb584395a67ec41395