[conformal/btcdb] a12b62: Add commented imports to the example.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcdb
  Commit: a12b62c24c7e3d7dac8f77ec5e398b880b7d770a
      
https://github.com/conformal/btcdb/commit/a12b62c24c7e3d7dac8f77ec5e398b880b7d770a
  Author: Dave Collins <da...@conformal.com>
  Date:   2014-07-08 (Tue, 08 Jul 2014)

  Changed paths:
    M example_test.go

  Log Message:
  -----------
  Add commented imports to the example.