[btcsuite/btcjson] f61b8c: Add missing file for help generate tests.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcjson
  Commit: f61b8c808d233c7aa9bfbdbbadbb1bef4cb4a25b
      
https://github.com/btcsuite/btcjson/commit/f61b8c808d233c7aa9bfbdbbadbb1bef4cb4a25b
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-02-19 (Thu, 19 Feb 2015)

  Changed paths:
    A v2/btcjson/help_test.go

  Log Message:
  -----------
  Add missing file for help generate tests.