Fix typo.

biscuit/core/templates/core/system_status.html

@@ -9,7 +9,7 @@
 {% block content %}
   <div class="card">
     <div class="card-header bg-light text-dark">
-      {% blocktrans %}Recent backup cron jobs%{ endblocktrans %}
+      {% blocktrans %}Recent backup cron jobs{% endblocktrans %}
     </div>
     <ul class="list-group list-group-flush">
       {% for backup in backups %}