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

[Andrew Cagney]

New commits:
commit 6517e859165401a142ed09db384cd097e9189760
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun Aug 19 13:05:57 2018 -0400

    algparse: exit non-zero when things fail; update usage