app/views/pages/migrate.html.erb
<% @title = t('.title') %>
<div class="l-colspan t-body">
<p>
<code>gem migrate</code> has been deprecated, all of the RubyForge accounts and ownerships have been transferred over to Gemcutter.
</p>
<p>If you’re having problems with your gems and pushing, <%= mail_to "support@rubygems.org", "please open a support request" %>.</p>
</div>