title: lower case the first character of a string using only xslt 1.0
body: <p>I have seen <a href="https://stackoverflow.com/questions/586231/how-can-i-convert-a-string-to-upper-or-lower-case-with-xslt">patterns</a> for translating a string into lower (or upper case) using the translate function for folks stuck using xslt 1.0. </p>
  
  <p>Is there a elegant way of just making the first letter of a string lowercase?</p>
  
  <pre><code>TestCase =&gt; testCase
  </code></pre>