[btcsuite/btcd] 8134f6: Update TravisCI to ignore false positive in btcec.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: 8134f68a4bcf4fea435686ed7fcaa83fc4246a54
      
https://github.com/btcsuite/btcd/commit/8134f68a4bcf4fea435686ed7fcaa83fc4246a54
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-02-06 (Fri, 06 Feb 2015)

  Changed paths:
    M btcec/btcec_test.go
    M goclean.sh

  Log Message:
  -----------
  Update TravisCI to ignore false positive in btcec.

Also correct format verb found by go vet.