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

[Andrew Cagney]

New commits:
commit fb2e9504a44a03846c70c0a2c6bc8c74ae0e81f0
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Nov 25 16:05:38 2019 -0500

    logging: replace dup(fd_t whackfd) with a reference counted object and one fd per attached whack
    
    Use refcnt.[hc] so that leaks (aka whack hung) can be debugged using
    refcnt.awk (which is actually what I've already been doing).

commit ca650f284b4454963249944ab5fe0865383741bd
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Nov 25 14:17:12 2019 -0500

    refcnt: boiler plate code for reference counting structures
    
    make keeping things in sync with refcnt.awk easier