[btcsuite/btcwallet] c4abe0: Fix minor typos.

[Mawuli Adzoe]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcwallet
  Commit: c4abe025d099447c6d6cc609505109fa0ad50be1
      
https://github.com/btcsuite/btcwallet/commit/c4abe025d099447c6d6cc609505109fa0ad50be1
  Author: Mawuli Adzoe <mawuli.kofi.maw...@gmail.com>
  Date:   2015-12-30 (Wed, 30 Dec 2015)

  Changed paths:
    M chain/chain.go
    M waddrmgr/error.go

  Log Message:
  -----------
  Fix minor typos.