title: Change the timestamp of an SVN revision
body: <p>We had a power failure that exhausted our UPS and subsequently shutdown our SVN machine. When it booted back up it, the system time was incorrect.</p>
  
  <p>Unfortunately, this was not caught until some people had already committed a changes. So now we have a few revisions that predate the first revision by several years.</p>
  
  <p>Is there a way to correct this date, so things are in order?</p>