title: deleting all characters after a semicolon
body: <p>I am using sublime on Mac 
  I have something like this </p>
  
  <pre><code>Q21162;E5QCE7
  E5QCF5;P91040
  E5QCF6;E5QCF8;P34558
  E5QCG0;Q09499
  E5QCG2
  </code></pre>
  
  <p>I want to get rid of everything after the first ; 
  so I want the output like this </p>
  
  <pre><code>Q21162
  E5QCF5
  E5QCF6
  E5QCG0
  E5QCG2
  </code></pre>