[conformal/btcd] 8e3ede: Update for recent go-flags API changes.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcd
  Commit: 8e3ede441b49106f51062c278ce7fd03c745f81a
      
https://github.com/conformal/btcd/commit/8e3ede441b49106f51062c278ce7fd03c745f81a
  Author: Dave Collins <da...@conformal.com>
  Date:   2013-11-24 (Sun, 24 Nov 2013)

  Changed paths:
    M config.go
    M util/btcctl/config.go

  Log Message:
  -----------
  Update for recent go-flags API changes.