[btcsuite/btcd] afec1b: build: Give linters longer and cleanup goclean.sh.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: afec1bd1245a4a19e6dfe1306974b733e7cbb9b8
      
https://github.com/btcsuite/btcd/commit/afec1bd1245a4a19e6dfe1306974b733e7cbb9b8
  Author: Dave Collins <da...@conformal.com>
  Date:   2016-11-21 (Mon, 21 Nov 2016)

  Changed paths:
    M goclean.sh

  Log Message:
  -----------
  build: Give linters longer and cleanup goclean.sh.

This modifies the goclean.sh script to expand the deadline for the
linters to run to 4 minutes and ensures the comments match reality.