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

[Andrew Cagney]

New commits:
commit 522c8648a766031a786e60b871b7cc2a42d7ad6c
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Apr 1 09:48:15 2016 -0400

    pluto: only use pthread_setschedprio() when available
    
    Replaces darwin specific hack.