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

[D. Hugh Redelmeier]

New commits:
commit f7aaa80198851ef71da4be8dc54e816f7064e29a
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Fri Sep 15 23:11:26 2017 -0400

    pluto: improve NIC Offload detection code
    
    - fix bug: reverse sense of test for string "esp-hw-offload"
    
    - fix bug: correct bit subscripting logic
    
    - replace enum iface_nic_offload with bool
    
    - make definitions of NIC_OFFLOAD_* conditional on USE_NIC_OFFLOAD
    
    - reduce scope of variables
    
    - improve formatting