[btcsuite/btcd] 6c1244: build: Make goclean.sh script output more verbose.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: 6c12445fd5b2105b943c6f7ef87223ce9a3937ed
      
https://github.com/btcsuite/btcd/commit/6c12445fd5b2105b943c6f7ef87223ce9a3937ed
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-04-14 (Tue, 14 Apr 2015)

  Changed paths:
    M goclean.sh

  Log Message:
  -----------
  build: Make goclean.sh script output more verbose.

This commit makes the goclean script print every line it is executing so
any failures are more obvious where they're coming from.

Closes #361.