[conformal/btcrpcclient] d5cbdf: Fix a couple of issues found by golint.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcrpcclient
  Commit: d5cbdf849274b0b34af0fbd98d72118df97add50
      
https://github.com/conformal/btcrpcclient/commit/d5cbdf849274b0b34af0fbd98d72118df97add50
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-01-15 (Thu, 15 Jan 2015)

  Changed paths:
    M notify.go
    M wallet.go

  Log Message:
  -----------
  Fix a couple of issues found by golint.