[btcsuite/btcd] eb882f: multi: Fix several misspellings in the comments.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: eb882f39f8b263777bfefba06d44b69230d46a53
      
https://github.com/btcsuite/btcd/commit/eb882f39f8b263777bfefba06d44b69230d46a53
  Author: Dave Collins <da...@conformal.com>
  Date:   2016-02-25 (Thu, 25 Feb 2016)

  Changed paths:
    M addrmgr/addrmanager.go
    M addrmgr/addrmanager_test.go
    M blockchain/chain_test.go
    M blockchain/difficulty.go
    M blockchain/internal_test.go
    M blockchain/validate.go
    M blockmanager.go
    M btcec/ciphering.go
    M btcec/field.go
    M btcec/pubkey.go
    M btcjson/chainsvrresults.go
    M btcjson/cmdinfo.go
    M btcjson/cmdinfo_test.go
    M btcjson/register_test.go
    M chainindexer.go
    M config.go
    M database/db.go
    M database/ldb/tx.go
    M database2/doc.go
    M database2/driver.go
    M database2/ffldb/interface_test.go
    M database2/interface.go
    M discovery.go
    M dynamicbanscore.go
    M log.go
    M mempool.go
    M mempoolerror.go
    M peer/doc.go
    M peer/peer.go
    M policy.go
    M rpcserver.go
    M rpcwebsocket.go
    M server.go
    M txscript/engine.go
    M txscript/error.go
    M txscript/script.go
    M txscript/scriptbuilder.go
    M txscript/sign.go
    M wire/fixedIO_test.go

  Log Message:
  -----------
  multi: Fix several misspellings in the comments.

This commit corrects several typos in the comments found by misspell.