title: system variable configuration in teamcity for adding timestamp to it
body: <p>I have created a parameter in Team city that is system parameter as shown below
  system.version and its value is gla so it is like</p>
  
  <pre><code>system.version=gla
  </code></pre>
  
  <p>now can you please advise in Team City how can I configure this variable such as i want date time stamp to be appended since this variable is need to be changed every time when my build runs so I want to add the dates time stamp to this system variable please advise how to achieve this in team city.</p>