Re #86 - fix typo

backend/templates/scrub.html

@@ -16,7 +16,7 @@
             </div>
             <br/>
             <div class="pure-control-group">
-                <label for="confirmtext">Optional: Limit deletion of of snapshots to snapshots <i>newer</i> than date/time</label>
+                <label for="confirmtext">Optional: Limit deletion of snapshots to snapshots <i>newer</i> than date/time</label>
                 <input type="datetime-local" id="limit_date" name="limit_date"  />
                 <span class="pure-form-message-inline">dd/mm/yyyy hh:mm (24 hour format)</span>
             </div>