title: rails number_to_currency bug?
body: <p>I have a rails app (rails version 2.1.0) and today I found a very weird error.</p>
  
  <p>A money value(mysql decimal column with precision 8 and scale 2) is 86.02. However, number_to_currency method returns "$86.20". This happens only in production server. My dev server returns correctly. The production server is red hat and dev is ubuntu.</p>
  
  <p>This is also confirmed in console.</p>
  
  <pre class="lang-ruby prettyprint-override"><code>&gt;&gt; p.deposit_total.to_s 
  =&gt; "86.02"
  &gt;&gt; helper.number_to_currency p.deposit_total 
  =&gt; "$86.20"
  </code></pre>
  
  <p>Is this a known issue?</p>
  
  <p>Thanks.</p>
  
  <p>Sam</p>