[conformal/btcwallet] f5572f: Fix typo.

[Josh Rickmar]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcwallet
  Commit: f5572f7f75ebfc7576ca2cd3855bfd3fb50759d9
      
https://github.com/conformal/btcwallet/commit/f5572f7f75ebfc7576ca2cd3855bfd3fb50759d9
  Author: Josh Rickmar <jr...@conformal.com>
  Date:   2014-05-08 (Thu, 08 May 2014)

  Changed paths:
    M tx/doc.go

  Log Message:
  -----------
  Fix typo.