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

[Andrew Cagney]

New commits:
commit 4303ac9a54936e0437bd79c04db4df46360518c9
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Sep 25 16:15:48 2017 -0400

    pluto: eliminate some redundant ->esp!=NULL checks