title: New file not showing up in git status
body: <p>I have forked and cloned a repository in order to contribute to it. On the command line I created a new branch, and created a file called 'ansible.cfg', but it doesn't show up when running <code>git status</code>. After playing around even a file 'a.cfg' doesn't show up in git status:</p>
  
  <pre><code>$ git status
  On branch add-selenium-grid
  nothing to commit, working directory clean
  $ touch tests/ui/a.txt tests/ui/a.cfg
  $ git status
  On branch add-selenium-grid
  Untracked files:
    (use "git add &lt;file&gt;..." to include in what will be committed)
  
      tests/ui/a.txt
  
  nothing added to commit but untracked files present (use "git add" to track)
  $ ls tests/ui/a.*
  tests/ui/a.cfg  tests/ui/a.txt
  </code></pre>
  
  <p>I'm pretty new to git, but this seems so basic, I'm at a loss.</p>