title: Add carriage return to a string
body: <p>I have a long string.</p>
  
  <pre><code>string s1 = "'99024','99050','99070','99143','99173','99191','99201','99202','99203','99204','99211','99212','99213','99214','99215','99217','99218','99219','99221','99222','99231','99232','99238','99239','99356','99357','99371','99374','99381','99382','99383','99384','99385','99386','99391','99392'";
  </code></pre>
  
  <p>I want </p>
  
  <pre><code>string s2 = 
              "'99024',
               '99050',
               '99070',
               '99143',
               '99173',
               '99191',
               '99201',
               '99202',....";
  </code></pre>
  
  <p>In other words. Maybe it likes:</p>
  
  <pre><code>string s2 = "'99024',"+'\n'+"'99050',"+'\n'+"'99070',"+'\n'+"'99143',"+'\n'+.....;
  </code></pre>
  
  <p>I need a concise code. Maybe LINQ. Thanks.</p>