title: goaccess parsing not working
body: <p>I'm trying to get goaccess working.
  Already take some time on docs and examples but without success.</p>
  
  <p>Basically i have log lines like:</p>
  
  <pre><code>10031488_71334 xpto.domain.com 88.103.999.999 - - [16/Jun/2013:15:03:26 +0000] "GET / HTTP/1.1" 500 5624 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0" -
  </code></pre>
  
  <p>and already compile goaccess and create a conf file:</p>
  
  <pre><code>cat ~/.goaccessrc
  date_format %d/%b/%Y:%T %z
  log_format %^ %^ %h - - [$d] "%r" %s %b "%R" "%u" %^
  </code></pre>
  
  <p>Then i got:</p>
  
  <pre><code>./goaccess -a -f miniout.log
  
  GoAccess - version 0.6 - Aug  5 2013 20:20:16
  
  An error has occurred
  Error occured at: goaccess.c - render_screens - 358
  Message: Nothing valid to process.
  </code></pre>
  
  <p>Any help?
  Thanks.</p>