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

[D. Hugh Redelmeier]

New commits:
commit c303d87f7b2f146122ad87ae9eb0325779025327
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Mon Oct 9 14:30:19 2017 -0400

    pluto: tidy add_xauth_addresspool and do_file_authentication
    
    - format strings should not be broken across linees
    
    - snprintf should usually be used in place of sprintf
    
    - a variable's declaration and initialization should be combined if reasonable
    
    - a variable's scope should be minimized
    
    - eliminate a variable by inlining if that simplifies the program
    
    - use auto over heap allocation where appropriate
    
    - pointer parameters should point to consts if possible
    
    - update some comments to match code
    
    - spelling
    
    - formatting