title: git ~/.config/git/config not reading
body: <p>I had the file:</p>
  
  <pre><code>~/.gitconfig
  </code></pre>
  
  <p>working ok, but I decided to move it to:</p>
  
  <pre><code>~/.config/git/config
  </code></pre>
  
  <p>Now, <code>git config --global -l</code> just gives:</p>
  
  <pre><code>$ git config --global -l
  fatal: unable to read config file '/home/user/.gitconfig': No such file or directory
  </code></pre>
  
  <p>I have <code>$XDG_CONFIG_HOME</code> configured and exported, as well as <code>$HOME</code>. What would be the problem?</p>
  
  <p>Is there some configuration I can set to <code>/etc/gitconfig</code> to make git aware of the new configuration file location (something like <code>core.globalconfig=$HOME/.config/git/config</code>)?</p>
  
  <p>Thanks</p>
  
  <p>--</p>
  
  <p>PS. 
  System: Debian Linux Wheezy</p>
  
  <p>Reference:</p>
  
  <p><a href="http://git-scm.com/docs/git-config/" rel="nofollow" title="git config">git config</a></p>