<%! from django.utils.translation import ugettext as _ %>
<%inherit file="base.html" />

<%block name="content">
<div class="wrapper-mast wrapper sr">
  <header class="mast">
    <h1 class="page-header">${_("Studio Account Activation")}</h1>
  </header>
</div>

<div class="wrapper-content wrapper">
  <section class="content activation is-invalid">
    <article class="content-primary" role="main">
    </article>

    <div class="notice notice-incontext notice-instruction has-actions">
      <div class="msg">
        <h1 class="title">${_("Your account activation is invalid")}</h1>
        <div class="copy">
          <p>${_("We're sorry. Something went wrong with your activation. Check to make sure the URL you went to was correct &mdash; e-mail programs will sometimes split it into two lines.")}</p>
          <p>${_("If you still have issues, contact edX Support. In the meantime, you can also return to {link_start}the Studio homepage.{link_end}").format(
              link_start='<a href="/">', link_end="</a>"
            )}</p>
        </div>
      </div>

      <ul class="list-actions">
        <li class="action-item">
          <a href="http://help.edge.edx.org/discussion/new" class="action action-primary show-tender">${_('Contact edX Support')}</a>
        </li>
      </ul>
    </div>
  </section>
</div>
</%block>

<%! from django.utils.translation import ugettext as _ %>
<%inherit file="base.html" />

<%block name="content">
<div class="wrapper-mast wrapper sr">
  <header class="mast">
    <h1 class="page-header">${_("Studio Account Activation")}</h1>
  </header>
</div>

<div class="wrapper-content wrapper">
  <section class="content activation is-invalid">
    <article class="content-primary" role="main">
    </article>

    <div class="notice notice-incontext notice-instruction has-actions">
      <div class="msg">
        <h1 class="title">${_("Your account activation is invalid")}</h1>
        <div class="copy">
          <p>${_("We're sorry. Something went wrong with your activation. Check to make sure the URL you went to was correct — e-mail programs will sometimes split it into two lines.")}</p>
          <p>${_("If you still have issues, contact edX Support. In the meantime, you can also return to {link_start}the Studio homepage.{link_end}").format(
              link_start='<a href="/">', link_end="</a>"
            )}</p>
        </div>
      </div>

      <ul class="list-actions">
        <li class="action-item">
          <a href="http://help.edge.edx.org/discussion/new" class="action action-primary show-tender">${_('Contact edX Support')}</a>
        </li>
      </ul>
    </div>
  </section>
</div>
</%block>

Replace &mdash; with literal emdash
Replace &mdash; with literal emdash
