title: Ginkgo does not provide coverage in Travis CI
body: <p>I have a GO project which I build in Travis CI.
  I have implemented a few tests with Ginkgo, and I am getting code coverage when I run it locally, however I get no coverage when I run it on Travis.</p>
  
  <p>My .travis.yml</p>
  
  <pre><code>language: go
  
  # safelist
  branches:
    only:
    - master
    - travis
  
  before_install:
    - go get github.com/onsi/gomega
    - go get github.com/onsi/ginkgo/ginkgo
    - go get github.com/modocache/gover
  
  script:
    - ginkgo -r --randomizeAllSpecs --randomizeSuites --failOnPending --cover --trace --race --compilers=2
  
  after_success:
    - gover . coverage.txt
    - ls -al
    - cat coverage.txt
    - bash &lt;(curl -s https://codecov.io/bash)
  </code></pre>
  
  <p>When I run the script command on my own machine I get the following result </p>
  
  <pre><code>$ ginkgo -r --randomizeAllSpecs --randomizeSuites --failOnPending --cover --trace --race --compilers=2
  Running Suite: Gitserver Suite
  ==============================
  Random Seed: 1470431018 - Will randomize all specs
  Will run 4 of 4 specs
  
  ++++
  Ran 4 of 4 Specs in 0.000 seconds
  SUCCESS! -- 4 Passed | 0 Failed | 0 Pending | 0 Skipped PASS
  coverage: 25.9% of statements
  
  Ginkgo ran 1 suite in 4.411023s
  Test Suite Passed
  </code></pre>
  
  <p>But on travis CI the coverage says "0.0% of statement"</p>
  
  <p>I have tried to setup a new GOPATH on my local machine to get a clean setup and only run the commands that occurs in the Travis log, and I still get a reported 25% coverage. My machine is running windows where as Travis is linux, that is the only difference I can think of right now.</p>
  
  <p>I have just tried GoCover.io on my package, and that also gives me the 25% coverage that I get locally.</p>