title: What does "m" stand for in rpsec testing?
body: <p>I execute:</p>
  
  <pre><code>rake spec:models
  </code></pre>
  
  <p>and I get:</p>
  
  <pre><code>←[32m.←[0m
  
  Finished in 0.08304 seconds
  ←[32m1 example, 0 failures←[0m
  </code></pre>
  
  <p>I haven't seen an explication for the "32m1" or "0m" anywhere. What are they?</p>