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

[D. Hugh Redelmeier]

New commits:
commit 36955a9d57245d2d46f1b3da2f5bc9153d2989e2
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Sat May 28 01:41:39 2016 -0400

    pluto fetch.c: tidy
    
    - use FOR statement where clearer (hightlights the induction variable
      and brings the control of it to one place)
    
    - simplify by eliminating variables
    
    - improve comments
    
    - reduce scope of variables
    
    - combine declaration with first assignment where simpler.
      This makes it evidently impossible to refer to it before initialization.
    
    - remove assignments embedded in tests
    
    - locking now matches the static structure of the program
    
    - eliminate some deep returns